Engineering & Technology
Pre-modern engineering manuals, builder's guides, and technical handbooks — practical knowledge underrepresented in modern training corpora.
The Notebooks of Leonardo Da Vinci — Complete
Leonardo, da Vinci
33,964 Gutenberg downloadsen2004Difficulty 52 (Graduate)Concrete Construction: Methods and Costs
Gillette, Halbert Powers & Hill, Charles Shattuck
14,064 Gutenberg downloadsen2008Difficulty 63 (Academic)Practical Mechanics for Boys
Zerbe, James Slough
9,680 Gutenberg downloadsen2007Difficulty 45 (College)Steam, Its Generation and Use
Babcock & Wilcox Company
6,915 Gutenberg downloadsen2007Difficulty 64 (Academic)Mechanical Drawing Self-Taught Comprising instructions in the selection and preparation of drawing instruments, elementary instruction in practical mechanical drawing; together with examples in simple geometry and elementary mechanism, including screw threads, gear wheels, mechanical motions, engines and boilers
Rose, Joshua
6,386 Gutenberg downloadsen2007Difficulty 71 (Expert)Steam Turbines A Book of Instruction for the Adjustment and Operation of the Principal Types of this Class of Prime Movers
Collins, Hubert E. (Hubert Edwin)
5,439 Gutenberg downloadsen2009Difficulty 50 (College)Electricity for Boys
Zerbe, James Slough
4,563 Gutenberg downloadsen2007Difficulty 52 (Graduate)Color Images from Mars Rovers Spirit and Opportunity
Webster, Bob
4,195 Gutenberg downloadsen2004Difficulty 58 (Graduate)The book of wonders : $b gives plain and simple answers to the thousands of everyday questions that are asked and which all should be able to, but cannot answer...
Unknown
3,941 Gutenberg downloadsen2025Difficulty 48 (College)The Dyeing of Cotton Fabrics: A Practical Handbook for the Dyer and Student
Beech, Franklin
3,751 Gutenberg downloadsen2007Difficulty 55 (Graduate)My Life and Work
Ford, Henry & Crowther, Samuel
3,268 Gutenberg downloadsen2005Difficulty 44 (College)How Two Boys Made Their Own Electrical Apparatus Containing Complete Directions for Making All Kinds of Simple Apparatus for the Study of Elementary Electricity
St. John, Thomas M. (Thomas Matthew)
3,105 Gutenberg downloadsen2009Difficulty 44 (College)Mission Furniture: How to Make It, Part 3
Windsor, H. H. (Henry Haven)
3,086 Gutenberg downloadsen2007Difficulty 38 (High School)James Watt
Carnegie, Andrew
2,929 Gutenberg downloadsen2008Difficulty 54 (Graduate)Agricultural Implements and Machines in the Collection of the National Museum of History and Technology Smithsonian Studies in History and Technology, No. 17
Schlebecker, John T.
2,914 Gutenberg downloadsen2008Difficulty 59 (Graduate)De Re Metallica, Translated from the First Latin Edition of 1556
Agricola, Georg
2,885 Gutenberg downloadsen2011Difficulty 64 (Academic)Elements of Plumbing
Dibble, Samuel Edward
2,738 Gutenberg downloadsen2008Difficulty 46 (College)The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting
Martin, Thomas Commerford
2,733 Gutenberg downloadsen2012Difficulty 57 (Graduate)The Progress of Invention in the Nineteenth Century.
Byrn, Edward W. (Edward Wright)
2,659 Gutenberg downloadsen2012Difficulty 56 (Graduate)The Standard Electrical Dictionary A Popular Dictionary of Words and Terms Used in the Practice of Electrical Engineering
Sloane, T. O'Conor (Thomas O'Conor)
2,616 Gutenberg downloadsen2008Difficulty 54 (Graduate)Jane's All the World's Aircraft. 1913
Unknown
2,597 Gutenberg downloadsen2011Difficulty 71 (Expert)The Aeroplane Speaks. Fifth Edition
Barber, H. (Horatio)
2,577 Gutenberg downloadsen2007Difficulty 49 (College)L'isthme de Panama Examen historique et géographique des différentes directions suivant lesquelles on pourrait le percer et des moyens à y employer; suivi d'un aperçu sur l'isthme de Suez.
Chevalier, Michel
2,552 Gutenberg downloadsfr2008Edison: His Life and Inventions
Dyer, Frank Lewis & Martin, Thomas Commerford
2,521 Gutenberg downloadsen2006Difficulty 62 (Academic)Ocean Steam Navigation and the Ocean Post
Rainey, Thomas
2,466 Gutenberg downloadsen2008Difficulty 77 (Expert)Steam-ships : $b The story of their development to the present day
Fletcher, R. A.
2,449 Gutenberg downloadsen2024Difficulty 50 (College)The handbook of soap manufacture
Simmons, W. H. (William Herbert) & Appleton, H. A.
2,354 Gutenberg downloadsen2007Difficulty 74 (Expert)The works of the highly experienced and famous chymist, John Rudolph Glauber : $b containing, great variety of choice secrets in medicine and alchymy in the working of metallick mines, and the separation of metals: also, various cheap and easie ways of making salt-petre, and improving of barren-land, and the fruits of the earth.
Glauber, Johann Rudolf
2,204 Gutenberg downloadsen2024Difficulty 69 (Academic)The history of steam navigation
Kennedy, John
2,197 Gutenberg downloadsen2023Difficulty 55 (Graduate)Learning to Fly: A Practical Manual for Beginners
Grahame-White, Claude & Harper, Harry
2,154 Gutenberg downloadsen2008Difficulty 55 (Graduate)The Pencil of Nature
Talbot, William Henry Fox
2,108 Gutenberg downloadsen2010Difficulty 56 (Graduate)Gas and Oil Engines, Simply Explained An Elementary Instruction Book for Amateurs and Engine Attendants
Runciman, Walter C.
2,018 Gutenberg downloadsen2008Difficulty 57 (Graduate)A Dictionary of Arts, Manufactures and Mines containing a clear exposition of their principles and practice
Ure, Andrew
2,004 Gutenberg downloadsen2014Difficulty 69 (Academic)The Online World
De Presno, Odd
1,972 Gutenberg downloadsen1993Difficulty 51 (Graduate)Mission Furniture: How to Make It, Part 1
Windsor, H. H. (Henry Haven)
1,935 Gutenberg downloadsen2007Difficulty 41 (College)Passages from the Life of a Philosopher
Babbage, Charles
1,910 Gutenberg downloadsen2018Difficulty 51 (Graduate)Transactions of the American Society of Civil Engineers, vol. LXXII, June, 1911 Water Purification Plant, Washington, D. C. Results of Operation.
American Society of Civil Engineers & Hardy, E. D.
1,812 Gutenberg downloadsen2008Difficulty 49 (College)The Condition and Tendencies of Technical Education in Germany
Chamberlain, Arthur Henry
1,794 Gutenberg downloadsen2008Difficulty 61 (Academic)The Silicon Jungle
Rothman, David H.
1,760 Gutenberg downloadsen2017Difficulty 53 (Graduate)Discoveries and Inventions of the Nineteenth Century
Routledge, Robert
1,702 Gutenberg downloadsen2017Difficulty 51 (Graduate)The Boy Electrician
Morgan, Alfred Powell
1,696 Gutenberg downloadsen2020Difficulty 47 (College)Fire prevention and fire extinction
Braidwood, James
1,692 Gutenberg downloadsen2008Difficulty 69 (Academic)Smithsonian Institution - United States National Museum - Bulletin 240 Contributions From the Museum of History and Technology Papers 34-44 on Science and Technology
Museum of History and Technology (U.S.)
1,689 Gutenberg downloadsen2012Difficulty 57 (Graduate)Lives of the Engineers The Locomotive. George and Robert Stephenson
Smiles, Samuel
1,667 Gutenberg downloadsen2009Difficulty 61 (Academic)Computers—the machines we think with
Halacy, D. S. (Daniel Stephen)
1,665 Gutenberg downloadsen2024Difficulty 58 (Graduate)Garden Cities of To-Morrow Being the Second Edition of "To-Morrow: a Peaceful Path to Real Reform"
Howard, Ebenezer, Sir
1,637 Gutenberg downloadsen2014Difficulty 63 (Academic)Inventions in the century
Doolittle, William H. (William Henry)
1,633 Gutenberg downloadsen2011Difficulty 67 (Academic)Modern Machine-Shop Practice, Volumes I and II
Rose, Joshua
1,630 Gutenberg downloadsen2012Difficulty 80 (Expert)The Evolution of Naval Armament
Robertson, Frederick Leslie
1,625 Gutenberg downloadsen2018Difficulty 61 (Academic)How it Works Dealing in simple language with steam, electricity, light, heat, sound, hydraulics, optics, etc., and with their applications to apparatus in common use
Williams, Archibald
1,621 Gutenberg downloadsen2009Difficulty 58 (Graduate)The Palace and Park Its Natural History, and Its Portrait Gallery, Together with a Description of the Pompeian Court
Phillips, Samuel & Forbes, Edward & Latham, R. G. (Robert Gordon) & Owen, Richard & Scharf, George & Shenton, F. K. J. (Francis Kingston John)
1,609 Gutenberg downloadsen2019Difficulty 57 (Graduate)Lectures in Navigation
Draper, Ernest Gallaudet
1,562 Gutenberg downloadsen2008Difficulty 46 (College)Waterways and Water Transport in Different Countries With a description of the Panama, Suez, Manchester, Nicaraguan, and other canals.
Jeans, J. Stephen (James Stephen)
1,547 Gutenberg downloadsen2018Difficulty 58 (Graduate)The Jargon File, Version 2.9.10, 01 Jul 1992
Unknown
1,528 Gutenberg downloadsen1992Difficulty 64 (Academic)Encyclopaedia Britannica, 11th Edition, "Joints" to "Justinian I." Volume 15, Slice 5
Various
1,472 Gutenberg downloadsen2012Difficulty 65 (Academic)German Science Reader An Introduction to Scientific German, for Students of Physics, Chemistry and Engineering
Kroeh, Charles Frederick
1,470 Gutenberg downloadsde2007Giant brains; or, Machines that think
Berkeley, Edmund Callis
1,466 Gutenberg downloadsen2022Difficulty 48 (College)History of merchant shipping and ancient commerce, Volume 4 (of 4)
Lindsay, W. S. (William Schaw)
1,445 Gutenberg downloadsen2024Difficulty 78 (Expert)A Newly Discovered System of Electrical Medication
Clark, Daniel
1,432 Gutenberg downloadsen2007Difficulty 66 (Academic)James B. Eads
How, Louis
1,429 Gutenberg downloadsen2008Difficulty 52 (Graduate)The Story of the Typewriter, 1873-1923
Herkimer County Historical Society
1,412 Gutenberg downloadsen2019Difficulty 58 (Graduate)English and American tool builders
Roe, Joseph Wickham
1,405 Gutenberg downloadsen2023Difficulty 51 (Graduate)The boy mechanic, book 3 : $b 800 things for boys to do
Unknown
1,387 Gutenberg downloadsen2023Difficulty 43 (College)Underground: Hacking, madness and obsession on the electronic frontier
Dreyfus, Suelette
1,387 Gutenberg downloadsen2003Difficulty 53 (Graduate)The Invention of Printing. A Collection of Facts and Opinions, Descriptive of Early Prints and Playing Cards, the Block-Books of the Fifteenth Century, the Legend of Lourens Janszoon Coster, of Haarlem, and the Work of John Gutenberg and His Associates
De Vinne, Theodore Low
1,381 Gutenberg downloadsen2016Difficulty 52 (Graduate)Experiments with Alternate Currents of High Potential and High Frequency A Lecture Delivered before the Institution of Electrical Engineers, London
Tesla, Nikola
1,372 Gutenberg downloadsen2004Difficulty 63 (Academic)A History of Inventions, Discoveries, and Origins, Volume 2 (of 2)
Beckmann, Johann
1,339 Gutenberg downloadsen2015Difficulty 68 (Academic)The Bark Canoes and Skin Boats of North America
Adney, Tappan & Chapelle, Howard Irving
1,324 Gutenberg downloadsen2016Difficulty 53 (Graduate)Aërial Navigation A Popular Treatise on the Growth of Air Craft and on Aëronautical Meteorology
Zahm, Albert Francis
1,322 Gutenberg downloadsen2019Difficulty 53 (Graduate)Rambles on Railways
Roney, Cusack P., Sir
1,314 Gutenberg downloadsen2015Difficulty 58 (Graduate)The Invention of the Sewing Machine
Cooper, Grace Rogers
1,312 Gutenberg downloadsen2010Difficulty 57 (Graduate)A History of the Growth of the Steam-Engine
Thurston, Robert Henry
1,309 Gutenberg downloadsen2011Difficulty 57 (Graduate)Cottage Building in Cob, Pisé, Chalk and Clay: A Renaissance (2nd edition)
Williams-Ellis, Clough
1,307 Gutenberg downloadsen2010Difficulty 53 (Graduate)Carriages & Coaches: Their History & Their Evolution
Straus, Ralph
1,304 Gutenberg downloadsen2014Difficulty 55 (Graduate)Terrestrial and Celestial Globes Volume 2 Their History and Construction Including a Consideration of their Value as Aids in the Study of Geography and Astronomy
Stevenson, Edward Luther
1,299 Gutenberg downloadsen2012Difficulty 58 (Graduate)The Romance of Modern Invention Containing Interesting Descriptions in Non-technical Language of Wireless Telegraphy, Liquid Air, Modern Artillery, Submarines, Dirigible Torpedoes, Solar Motors, Airships, &c. &c.
Williams, Archibald
1,291 Gutenberg downloadsen2012Difficulty 56 (Graduate)Ocean Steamships A popular account of their construction, development, management and appliances
Chadwick, French Ensor & Gould, John H. & Hunt, Ridgely & Kelley, J. D. Jerrold (James Douglas Jerrold) & Rideing, William H. (William Henry) & Seaton, A. E. (Albert Edward)
1,288 Gutenberg downloadsen2017Difficulty 72 (Expert)The Boy's Book of New Inventions
Maule, Harry E. (Harry Edward)
1,260 Gutenberg downloadsen2014Difficulty 60 (Graduate)Time Telling through the Ages
Brearley, Harry Chase
1,258 Gutenberg downloadsen2015Difficulty 53 (Graduate)Aviation Engines: Design—Construction—Operation and Repair
Pagé, Victor Wilfred
1,251 Gutenberg downloadsen2011Difficulty 74 (Expert)Aviation in Peace and War
Sykes, Frederick Hugh, Sir
1,246 Gutenberg downloadsen2008Difficulty 61 (Academic)Portable Flame Thrower M2-2
United States. War Department
1,245 Gutenberg downloadsen2016Difficulty 53 (Graduate)Lightships and Lighthouses
Talbot, Frederick Arthur Ambrose
1,220 Gutenberg downloadsen2016Difficulty 61 (Academic)On the Origin of Clockwork, Perpetual Motion Devices, and the Compass
Price, Derek J. de Solla (Derek John de Solla)
1,216 Gutenberg downloadsen2009Difficulty 65 (Academic)The Project Gutenberg RST Manual
Perathoner, Marcello
1,213 Gutenberg downloadsen2001Difficulty 50 (College)Hitchhiker's Guide to the Internet
Krol, Ed
1,201 Gutenberg downloadsen1992Difficulty 53 (Graduate)Encyclopaedia Britannica, 11th Edition, "Armour Plates" to "Arundel, Earls of" Volume 2, Slice 6
Various
1,176 Gutenberg downloadsen2010Difficulty 57 (Graduate)Cyclopedia of Telephony and Telegraphy, Vol. 1 A General Reference Work on Telephony, etc. etc.
American School of Correspondence
1,174 Gutenberg downloadsen2005Difficulty 74 (Expert)Encyclopaedia Britannica, 11th Edition, "Hydromechanics" to "Ichnography" Volume 14, Slice 2
Various
1,174 Gutenberg downloadsen2012Difficulty 70 (Academic)The Story of Great Inventions
Burns, Elmer Ellsworth
1,169 Gutenberg downloadsen2011Difficulty 57 (Graduate)Opportunities in Aviation
Sweetser, Arthur & Lamont, Gordon
1,159 Gutenberg downloadsen2007Difficulty 58 (Graduate)The Modern Railroad
Hungerford, Edward
1,155 Gutenberg downloadsen2012Difficulty 94 (Quantum Electrodynamics)Steamships and their story
Chatterton, E. Keble (Edward Keble)
1,154 Gutenberg downloadsen2023Difficulty 64 (Academic)History of the Royal Sappers and Miners, Volume 1 (of 2) From the Formation of the Corps in March 1712 to the date when its designation was changed to that of Royal Engineers
Connolly, T. W. J. (Thomas William John)
1,150 Gutenberg downloadsen2017Difficulty 79 (Expert)The Boy Mechanic, Book 2: 1000 Things for Boys to Do
Unknown
1,147 Gutenberg downloadsen2014Difficulty 49 (College)The Modern Bicycle and Its Accessories
Schwalbach, Alex & Wilcox, Julius
1,147 Gutenberg downloadsen2018Difficulty 63 (Academic)The evolution of the steam locomotive (1803 to 1898)
Nokes, George Augustus
1,138 Gutenberg downloadsen2024Difficulty 61 (Academic)The Manufacture of Paper With Illustrations, and a Bibliography of Works Relating to Cellulose and Paper-Making
Sindall, R. W. (Robert Walter)
1,136 Gutenberg downloadsen2014Difficulty 54 (Graduate)The Manufacture of Chocolate and other Cacao Preparations
Zipperer, Paul
1,135 Gutenberg downloadsen2017Difficulty 57 (Graduate)Soap-Making Manual A Practical Handbook on the Raw Materials, Their Manipulation, Analysis and Control in the Modern Soap Plant.
Thomssen, Edgar George
1,120 Gutenberg downloadsen2010Difficulty 56 (Graduate)The gunsmith's manual : $b A complete handbook for the American gunsmith, being a practical guide to all branches of the trade
Stelle, J. Parish (James Parish) & Harrison, Wm. B. (William B.)
1,108 Gutenberg downloadsen2023Difficulty 64 (Academic)Woodworking Tools 1600-1900
Welsh, Peter C.
1,101 Gutenberg downloadsen2008Difficulty 54 (Graduate)The American Printer: A Manual of Typography Containing practical directions for managing all departments of a printing office, as well as complete instructions for apprentices; with several useful tables, numerous schemes for imposing forms in every variety, hints to authors, etc.
MacKellar, Thomas
1,098 Gutenberg downloadsen2018Difficulty 68 (Academic)Lives of Boulton and Watt. Principally from the Original Soho Mss. Comprising also a history of the invention and introduction of the steam engine
Smiles, Samuel
1,093 Gutenberg downloadsen2016Difficulty 86 (Specialist)Highways and Highway Transportation
Chatburn, George R.
1,091 Gutenberg downloadsen2021Difficulty 63 (Academic)Aircraft and Submarines The Story of the Invention, Development, and Present-Day Uses of War's Newest Weapons
Abbot, Willis J. (Willis John)
1,075 Gutenberg downloadsen2009Difficulty 59 (Graduate)Motorcycle, Solo (Harley-Davidson Model WLA)
United States. War Department
1,072 Gutenberg downloadsen2016Difficulty 57 (Graduate)The History of Coaches
Thrupp, George Athelstane
1,069 Gutenberg downloadsen2015Difficulty 55 (Graduate)Development of the Phonograph at Alexander Graham Bell's Volta Laboratory Contributions from the Museum of History and Technology, United States National Museum Bulletin 218, Paper 5, (pages 69-79)
Newville, Leslie J.
1,065 Gutenberg downloadsen2009Difficulty 54 (Graduate)The Mechanical Properties of Wood Including a Discussion of the Factors Affecting the Mechanical Properties, and Methods of Timber Testing
Record, Samuel J. (Samuel James)
1,059 Gutenberg downloadsen2004Difficulty 55 (Graduate)The Rise of Rail-Power in War and Conquest, 1833-1914
Pratt, Edwin A.
1,049 Gutenberg downloadsen2013Difficulty 78 (Expert)The Romance of Modern Mechanism With Interesting Descriptions in Non-technical Language of Wonderful Machinery and Mechanical Devices and Marvellously Delicate Scientific Instruments
Williams, Archibald
1,047 Gutenberg downloadsen2014Difficulty 57 (Graduate)An Analysis of the Lever Escapement
Playtner, H. R.
1,042 Gutenberg downloadsen2007Difficulty 53 (Graduate)The Automobile Storage Battery: Its Care And Repair
Witte, Otto A.
1,036 Gutenberg downloadsen2009Difficulty 54 (Graduate)Mechanics: The Science of Machinery
Bond, A. Russell (Alexander Russell)
1,034 Gutenberg downloadsen2015Difficulty 53 (Graduate)The American Railway: Its Construction, Development, Management, and Appliances
Clarke, Thomas Curtis
1,033 Gutenberg downloadsen2017Difficulty 88 (Specialist)Experimental Mechanics A Course of Lectures Delivered at the Royal College of Science for Ireland
Ball, Robert S. (Robert Stawell)
1,032 Gutenberg downloadsen2020Difficulty 48 (College)Artificial Light: Its Influence upon Civilization
Luckiesh, Matthew
1,020 Gutenberg downloadsen2006Difficulty 63 (Academic)Keely and His Discoveries: Aerial Navigation
Moore, Bloomfield H., Mrs.
1,017 Gutenberg downloadsen2018Difficulty 60 (Graduate)Pyrometry: A Practical Treatise on the Measurement of High Temperatures
Darling, Charles R. (Charles Robert)
1,016 Gutenberg downloadsen2018Difficulty 71 (Expert)Encyclopaedia Britannica, 11th Edition, "Destructors" to "Diameter" Volume 8, Slice 3
Various
1,015 Gutenberg downloadsen2009Difficulty 60 (Graduate)Inventors at Work, with Chapters on Discovery
Iles, George
1,014 Gutenberg downloadsen2015Difficulty 60 (Graduate)Hackers, Heroes of the Computer Revolution. Chapters 1 and 2
Levy, Steven
1,009 Gutenberg downloadsen1996Difficulty 59 (Graduate)Leonardo da Vinci, Pathfinder of Science
Gillette, Henry S.
1,001 Gutenberg downloadsen2017Difficulty 51 (Graduate)On the Economy of Machinery and Manufactures
Babbage, Charles
1,000 Gutenberg downloadsen2003Difficulty 68 (Academic)Panama and the Canal in Picture and Prose
Abbot, Willis J. (Willis John)
998 Gutenberg downloadsen2021Difficulty 100 (Quantum Electrodynamics)Field artillery materiel
Unknown
997 Gutenberg downloadsen2023Difficulty 58 (Graduate)A manual of face brick construction
American Face Brick Association
993 Gutenberg downloadsen2022Difficulty 56 (Graduate)The Life of George Stephenson and of his Son Robert Stephenson Comprising Also a History of the Invention and Introduction of the Railway Locomotive
Smiles, Samuel
991 Gutenberg downloadsen2014Difficulty 61 (Academic)Practical Hand Book of Gas, Oil and Steam Engines Stationary, Marine, Traction; Gas Burners, Oil Burners, Etc.; Farm, Traction, Automobile, Locomotive; A simple, practical and comprehensive book on the construction, operation and repair of all kinds of engines. Dealing with the various parts in detail and the various types of engines and also the use of different kinds of fuel.
Rathbun, John B.
989 Gutenberg downloadsen2018Difficulty 71 (Expert)Every-day Science: Volume 6. The Conquest of Nature
Williams, Henry Smith & Williams, Edward Huntington
982 Gutenberg downloadsen2013Difficulty 53 (Graduate)The life of Isambard Kingdom Brunel, Civil Engineer
Brunel, Isambard
978 Gutenberg downloadsen2012Difficulty 57 (Graduate)The engineer's sketch-book of mechanical movements, devices, appliances, contrivances and details employed in the design and construction of machinery for every purpose : $b classified & arranged for reference for the use of engineers, mechanical draughtsmen, managers, mechanics, inventors, patent agents, and all engaged in the mechanical arts
Barber, Thomas Walter
975 Gutenberg downloadsen2018Difficulty 55 (Graduate)The Microscope. Its History, Construction, and Application 15th ed. Being a familiar introduction to the use of the instrument, and the study of microscopical science
Hogg, Jabez
970 Gutenberg downloadsen2020Difficulty 67 (Academic)The First Quarter-Century of Steam Locomotives in North America Remaining Relics and Operable Replicas with a Catalog of Locomotive Models in the U. S. National Museum. United States National Museum Bulletin 210
Oliver, Smith Hempstone
968 Gutenberg downloadsen2016Difficulty 59 (Graduate)The calculating engine
Babbage, Charles
965 Gutenberg downloadsen2023Difficulty 71 (Expert)American Hand Book of the Daguerreotype
Humphrey, S. D. (Samuel Dwight)
957 Gutenberg downloadsen1994Difficulty 61 (Academic)A short history of the printing press and of the improvements in printing machinery from the time of Gutenberg up to the present day
Hoe, Robert
955 Gutenberg downloadsen2020Difficulty 61 (Academic)Heroes of the Telegraph
Munro, John
954 Gutenberg downloadsen1997Difficulty 57 (Graduate)Die Welt auf Schienen Eine Darstellung der Einrichtungen und des Betriebs auf den Eisenbahnen des Fernverkehrs, Nebst einer Geschichte der Eisenbahn
Fürst, Artur
946 Gutenberg downloadsde2016Induction Coils, How to Make, Use, and Repair Them. Including Ruhmkorff, Tesla, and Medical Coils, Roentgen Radiography, Etc. Etc.
Norrie, H. S.
943 Gutenberg downloadsen2017Difficulty 50 (College)Gunpowder and Ammunition, Their Origin and Progress
Hime, H. W. L. (Henry William Lovett)
937 Gutenberg downloadsen2017Difficulty 52 (Graduate)Harper's Electricity Book for Boys
Adams, Joseph H. (Joseph Henry)
933 Gutenberg downloadsen2021Difficulty 59 (Graduate)Attack of Fortified Places. Including Siege-works, Mining, and Demolitions. Prepared for the use of the Cadets of the United States Military Academy
Mercur, James
931 Gutenberg downloadsen2019Difficulty 52 (Graduate)Shipbuilding from its beginnings. Vol. 1 (of 3)
Konijnenburg, E. van (Emile)
925 Gutenberg downloadsen2024Difficulty 55 (Graduate)Catechism of the locomotive
Forney, Matthias N. (Matthias Nace) & Kosak, Georg
922 Gutenberg downloadsen2025Difficulty 51 (Graduate)Men of Invention and Industry
Smiles, Samuel
918 Gutenberg downloadsen1996Difficulty 54 (Graduate)Aircraft : $b its development in war and peace and its commercial future
David, Evan John
915 Gutenberg downloadsen2024Difficulty 61 (Academic)A system of pyrotechny : $b Comprehending the theory and practice, with the application of chemistry; designed for exhibition and for war.
Cutbush, James
912 Gutenberg downloadsen2015Difficulty 45 (College)The History of the Telephone
Casson, Herbert Newton
912 Gutenberg downloadsen1997Difficulty 49 (College)Tube, Train, Tram, and Car; or, Up-to-date locomotion
Beavan, Arthur H. (Arthur Henry)
908 Gutenberg downloadsen2017Difficulty 62 (Academic)James Nasmyth, Engineer: An Autobiography
Nasmyth, James
906 Gutenberg downloadsen1996Difficulty 64 (Academic)Records of a Family of Engineers
Stevenson, Robert Louis
905 Gutenberg downloadsen1995Difficulty 54 (Graduate)The Submarine in War and Peace: Its Development and its Possibilities
Lake, Simon
896 Gutenberg downloadsen2014Difficulty 66 (Academic)Kinematics of Mechanisms from the Time of Watt
Ferguson, Eugene S.
895 Gutenberg downloadsen2008Difficulty 59 (Graduate)Seasoning of Wood
Wagner, J. B. (Joseph Bernard)
889 Gutenberg downloadsen2008Difficulty 59 (Graduate)Cotton Weaving and Designing 6th Edition
Taylor, John T.
888 Gutenberg downloadsen2018Difficulty 53 (Graduate)The Early History of the Airplane
Wright, Orville & Wright, Wilbur
886 Gutenberg downloadsen2008Difficulty 57 (Graduate)John Deere's Steel Plow
Kendall, Edward C.
883 Gutenberg downloadsen2010Difficulty 51 (Graduate)Autobiography of Sir John Rennie, F.R.S., Past President of the Institute of Civil Engineers Comprising the history of his professional life, together with reminiscences dating from the commencement of the century to the present time.
Rennie, John, Sir
878 Gutenberg downloadsen2017Difficulty 63 (Academic)The modern packing house : $b A complete treatise on the design, construction, equipment and operation of meat packing houses, according to present American praactice, including methods of converting by-products into commercial articles
Wilder, F. W. (Fred William)
877 Gutenberg downloadsen2024Difficulty 70 (Academic)Debian GNU/Linux : Guide to Installation and Usage
Goerzen, John & Othman, Ossama
876 Gutenberg downloadsen2004Difficulty 51 (Graduate)The archæology of Rome, Part 8 : $b The aqueducts
Parker, John Henry
876 Gutenberg downloadsen2024Difficulty 53 (Graduate)Gunnery in 1858: Being a Treatise on Rifles, Cannon, and Sporting Arms Explaining the Principles of the Science of Gunnery, and Describing the Newest Improvements in Fire-Arms
Greener, William
872 Gutenberg downloadsen2013Difficulty 83 (Specialist)The Art of Paper-Making A Practical Handbook of the Manufacture of Paper from Rags, Esparto, Straw, and Other Fibrous Materials, Including the Manufacture of Pulp from Wood Fibre
Watt, Alexander
871 Gutenberg downloadsen2017Difficulty 68 (Academic)The Story of the Submarine
Bishop, Farnham
871 Gutenberg downloadsen2015Difficulty 56 (Graduate)The Jacquard Machine Analyzed and Explained With an appendix on the preparation of jacquard cards, and practical hints to learners of jacquard designing
Posselt, E. A. (Emanuel Anthony)
870 Gutenberg downloadsen2017Difficulty 51 (Graduate)Story of the automobile: Its history and development from 1760 to 1917 With an analysis of the standing and prospects of the automobile industry
Barber, H. L. (Herbert Lee)
863 Gutenberg downloadsen2021Difficulty 67 (Academic)British Airships, Past, Present, and Future
Whale, George
862 Gutenberg downloadsen1996Difficulty 56 (Graduate)The watchmakers' hand book : $b intended as a workshop companion for those engaged in watchmaking and allied mechanical arts
Saunier, Claudius
862 Gutenberg downloadsen2025Difficulty 65 (Academic)Railway Adventures and Anecdotes: Extending over More Than Fifty Years
Unknown
858 Gutenberg downloadsen2010Difficulty 68 (Academic)Moving Pictures: How They Are Made and Worked
Talbot, Frederick Arthur Ambrose
854 Gutenberg downloadsen2022Difficulty 64 (Academic)Textiles, for Commercial, Industrial, and Domestic Arts Schools Also Adapted to Those Engaged in Wholesale and Retail Dry Goods, Wool, Cotton, and Dressmaker's Trades
Dooley, William H. (William Henry)
853 Gutenberg downloadsen2007Difficulty 54 (Graduate)The Life, Times, and Scientific Labours of the Second Marquis of Worcester To which is added a reprint of his Century of Inventions, 1663, with a Commentary thereon.
Dircks, Henry
851 Gutenberg downloadsen2016Difficulty 66 (Academic)The Tank Corps
Williams-Ellis, Clough & Williams-Ellis, Amabel
847 Gutenberg downloadsen2020Difficulty 60 (Graduate)The Railway Library, 1909 A Collection of Noteworthy Chapters, Addresses, and Papers Relating to Railways, Mostly Published During the Year
Unknown
842 Gutenberg downloadsen2015Difficulty 59 (Graduate)Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power
Leeds, F. H. (Frank Henley) & Butterfield, W. J. Atkinson (William John Atkinson)
839 Gutenberg downloadsen2005Difficulty 84 (Specialist)Lighthouses and Lightships A Descriptive and Historical Account of Their Mode of Construction and Organization
Adams, W. H. Davenport (William Henry Davenport)
838 Gutenberg downloadsen2018Difficulty 56 (Graduate)An Introduction to Machine Drawing and Design
Low, David Allan
837 Gutenberg downloadsen2012Difficulty 48 (College)Scientific American Supplement, No. 460, October 25, 1884
Various
834 Gutenberg downloadsen2004Difficulty 52 (Graduate)The kaleidoscope : $b its history, theory and construction. With its application to the fine and useful arts
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829 Gutenberg downloadsen2024Difficulty 62 (Academic)A History of Aeronautics
Vivian, Evelyn Charles & Marsh, W. Lockwood (William Lockwood)
828 Gutenberg downloadsen1997Difficulty 60 (Graduate)The Telescope
Bell, Louis
828 Gutenberg downloadsen2016Difficulty 66 (Academic)Samuel F. B. Morse, His Letters and Journals In Two Volumes, Volume II
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822 Gutenberg downloadsen2004Difficulty 55 (Graduate)Ancient Egyptian and Greek Looms
Roth, H. Ling (Henry Ling)
821 Gutenberg downloadsen2008Difficulty 47 (College)Great Inventions and Discoveries
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817 Gutenberg downloadsen2011Difficulty 51 (Graduate)Marvels of Scientific Invention An Interesting Account in Non-Technical Language of the Invention of Guns, Torpedoes, Submarine Mines, Up-to-Date Smelting, Freezing, Colour Photography, and Many Other Recent Discoveries of Science
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813 Gutenberg downloadsen2011Difficulty 51 (Graduate)Development of Gravity Pendulums in the 19th Century Contributions from the Museum of History and Technology, Papers 34-44 On Science and Technology, Smithsonian Institution, 1966
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812 Gutenberg downloadsen2011Difficulty 66 (Academic)Wonderful Balloon Ascents; Or, The Conquest of the Skies A History of Balloons and Balloon Voyages
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811 Gutenberg downloadsen1997Difficulty 59 (Graduate)Nitro-Explosives: A Practical Treatise
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810 Gutenberg downloadsen2005Difficulty 61 (Academic)Principles of Mining: Valuation, Organization and Administration
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808 Gutenberg downloadsen2008Difficulty 63 (Academic)Technology and Books for All
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807 Gutenberg downloadsen2008Difficulty 61 (Academic)Forge work
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806 Gutenberg downloadsen2016Difficulty 42 (College)Illustrated Catalogue of Locomotives; Baldwin Locomotive Works
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805 Gutenberg downloadsen2012Difficulty 55 (Graduate)The Panama Canal
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802 Gutenberg downloadsen2013Difficulty 56 (Graduate)The Wright Brothers
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800 Gutenberg downloadsen2022Difficulty 49 (College)Workshop on Electronic Texts: Proceedings, 9-10 June 1992
Library of Congress
799 Gutenberg downloadsen1993Difficulty 73 (Expert)The Steam Engine Explained and Illustrated (Seventh Edition) With an Account of Its Invention and Progressive Improvement, and Its Application to Navigation and Railways; Including Also a Memoir of Watt
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798 Gutenberg downloadsen2013Difficulty 76 (Expert)The Modern Clock A Study of Time Keeping Mechanism; Its Construction, Regulation and Repair
Goodrich, Ward L.
796 Gutenberg downloadsen2020Difficulty 49 (College)The 1893 Duryea Automobile In the Museum of History and Technology
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789 Gutenberg downloadsen2009Difficulty 56 (Graduate)The Wright Brothers' Engines and Their Design
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786 Gutenberg downloadsen2012Difficulty 68 (Academic)Early American Scientific Instruments and Their Makers
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785 Gutenberg downloadsen2012Difficulty 70 (Academic)The eBook is 40 (1971-2011)
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784 Gutenberg downloadsen2011Difficulty 63 (Academic)The Story of the Atlantic Cable
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784 Gutenberg downloadsen2014Difficulty 61 (Academic)A-B-C of Electricity
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780 Gutenberg downloadsen2014Difficulty 51 (Graduate)A treatise on the origin, progress, prevention, and cure of dry rot in timber : $b with remarks on the means of preserving wood from destruction by sea worms, beetles, ants, etc.
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779 Gutenberg downloadsen2017Difficulty 57 (Graduate)Free as in Freedom: Richard Stallman's Crusade for Free Software
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778 Gutenberg downloadsen2004Difficulty 57 (Graduate)Modern ships of war
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778 Gutenberg downloadsen2024Difficulty 64 (Academic)The Art of Bookbinding: A practical treatise, with plates and diagrams
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777 Gutenberg downloadsen2016Difficulty 51 (Graduate)The Puering, Bating & Drenching of Skins
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772 Gutenberg downloadsen2018Difficulty 53 (Graduate)The Aswân Obelisk With some remarks on the Ancient Engineering
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769 Gutenberg downloadsen2019Difficulty 46 (College)The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel
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767 Gutenberg downloadsen2007Difficulty 52 (Graduate)Theory and Practice of Piano Construction With a Detailed, Practical Method for Tuning
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767 Gutenberg downloadsen2018Difficulty 67 (Academic)El Proyecto Gutenberg (1971-2009)
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766 Gutenberg downloadses2010The automobile owner's guide
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766 Gutenberg downloadsen2022Difficulty 63 (Academic)Hawkins Electrical Guide v. 03 (of 10) Questions, Answers, & Illustrations, A progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications
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764 Gutenberg downloadsen2015Difficulty 68 (Academic)Measuring Tools
Unknown
762 Gutenberg downloadsen2013Difficulty 55 (Graduate)The Story of the Airship (Non-rigid) A Study of One of America's Lesser Known Defense Weapons
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759 Gutenberg downloadsen2016Difficulty 61 (Academic)Elevator Systems of the Eiffel Tower, 1889
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758 Gutenberg downloadsen2010Difficulty 63 (Academic)A Catechism of the Steam Engine
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757 Gutenberg downloadsen2004Difficulty 57 (Graduate)Inventors
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757 Gutenberg downloadsen2012Difficulty 61 (Academic)Opportunities in Engineering
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757 Gutenberg downloadsen2008Difficulty 56 (Graduate)Watch and Clock Escapements A Complete Study in Theory and Practice of the Lever, Cylinder and Chronometer Escapements, Together with a Brief Account of the Origin and Evolution of the Escapement in Horology
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754 Gutenberg downloadsen2005Difficulty 49 (College)Lightning Conductors: Their History, Nature, and Mode of Application
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753 Gutenberg downloadsen2017Difficulty 58 (Graduate)Self-Help Mechanical Drawing: An Educational Treatise
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752 Gutenberg downloadsen2022Difficulty 59 (Graduate)The Use of Ropes and Tackle
Dana, Homer J. (Homer Jackson) & Pearl, W. A. (William Armour)
751 Gutenberg downloadsen2018Difficulty 44 (College)Two Centuries of Shipbuilding by the Scotts at Greenock
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751 Gutenberg downloadsen2017Difficulty 56 (Graduate)Mechanics of the Household A Course of Study Devoted to Domestic Machinery and Household Mechanical Appliances
Keene, E. S. (Edward Spencer)
750 Gutenberg downloadsen2016Difficulty 65 (Academic)How to Install Electric Bells, Annunciators, and Alarms. Including Batteries, Wires and Wiring, Circuits, Pushes, Bells, Burglar Alarms, High and Low Water Alarms, Fire Alarms, Thermostats, Annunciators, and the Location and Remedying of Troubles
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749 Gutenberg downloadsen2018Difficulty 53 (Graduate)The Life of Thomas Telford, Civil Engineer With an Introductory History of Roads and Travelling in Great Britain
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749 Gutenberg downloadsen1997Difficulty 70 (Academic)The Recent Revolution in Organ Building Being an Account of Modern Developments
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749 Gutenberg downloadsen2007Difficulty 54 (Graduate)The Radio Amateur's Hand Book A Complete, Authentic and Informative Work on Wireless Telegraphy and Telephony
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748 Gutenberg downloadsen2004Difficulty 63 (Academic)Handbook for Light Artillery
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747 Gutenberg downloadsen2020Difficulty 51 (Graduate)History of electric light
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745 Gutenberg downloadsen2022Difficulty 70 (Academic)A handbook of laboratory glass-blowing
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744 Gutenberg downloadsen2010Difficulty 54 (Graduate)Stories of Inventors: The Adventures of Inventors and Engineers
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744 Gutenberg downloadsen2004Difficulty 64 (Academic)Turning and Boring A specialized treatise for machinists, students in the industrial and engineering schools, and apprentices, on turning and boring methods, including modern practice with engine lathes, turret lathes, vertical and horizontal boring machines
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743 Gutenberg downloadsen2010Difficulty 62 (Academic)History of the Royal Sappers and Miners, Volume 2 (of 2) From the Formation of the Corps in March 1712 to the date when its designation was changed to that of Royal Engineers
Connolly, T. W. J. (Thomas William John)
742 Gutenberg downloadsen2019Difficulty 95 (Quantum Electrodynamics)Tunneling: A Practical Treatise.
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741 Gutenberg downloadsen2019Difficulty 54 (Graduate)Flying Machines: Construction and Operation A Practical Book Which Shows, in Illustrations, Working Plans and Text, How to Build and Navigate the Modern Airship
Jackman, William J. (William James) & Chanute, Octave & Russell, Thomas Herbert
740 Gutenberg downloadsen1997Difficulty 56 (Graduate)The Invention of the Track Circuit The history of Dr. William Robinson's invention of the track circuit, the fundamental unit which made possible our present automatic block signaling and interlocking systems
American Railway Association
740 Gutenberg downloadsen2014Difficulty 60 (Graduate)Papierprüfung: Eine Anleitung zum Untersuchen von Papier
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739 Gutenberg downloadsde2019Philipp Reis: Inventor of the Telephone A Biographical Sketch
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738 Gutenberg downloadsen2018Difficulty 59 (Graduate)Chats on Old Clocks
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734 Gutenberg downloadsen2014Difficulty 57 (Graduate)Surveying and Levelling Instruments, Theoretically and Practically Described. For construction, qualities, selection, preservation, adjustments, and uses; with other apparatus and appliances used by civil engineers and surveyors in the field.
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734 Gutenberg downloadsen2020Difficulty 73 (Expert)The Dawn of Amateur Radio in the U.K. and Greece: A Personal View
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732 Gutenberg downloadsen1993Difficulty 59 (Graduate)The Rare Earths: Their Occurrence, Chemistry, and Technology
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732 Gutenberg downloadsen2020Difficulty 63 (Academic)Life of Richard Trevithick, with an Account of His Inventions. Volume 2 (of 2)
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731 Gutenberg downloadsen2014Difficulty 69 (Academic)An Account of the Bell Rock Light-House Including the Details of the Erection and Peculiar Structure of That Edifice; to Which Is Prefixed a Historical View of the Institution and Progress of the Northern Light-Houses
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730 Gutenberg downloadsen2015Difficulty 46 (College)Photographic Reproduction Processes
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729 Gutenberg downloadsen2015Difficulty 56 (Graduate)Rudimentary Treatise on the Construction of Locks
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728 Gutenberg downloadsen2020Difficulty 59 (Graduate)Electric Transmission of Water Power
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726 Gutenberg downloadsen2015Difficulty 61 (Academic)The Principles of Leather Manufacture
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726 Gutenberg downloadsen2018Difficulty 74 (Expert)Airplane Photography
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724 Gutenberg downloadsen2016Difficulty 58 (Graduate)Mechanical Devices in the Home
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719 Gutenberg downloadsen2014Difficulty 43 (College)Farm Mechanics: Machinery and Its Use to Save Hand Labor on the Farm.
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717 Gutenberg downloadsen2012Difficulty 42 (College)Nature's Teachings: Human Invention Anticipated by Nature
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717 Gutenberg downloadsen2016Difficulty 51 (Graduate)On-Line Data-Acquisition Systems in Nuclear Physics, 1969
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716 Gutenberg downloadsen2013Difficulty 64 (Academic)Cyclopedia of Telephony and Telegraphy, Vol. 2 A General Reference Work on Telephony, etc. etc.
American School of Correspondence
714 Gutenberg downloadsen2010Difficulty 76 (Expert)Principles and Practice of Fur Dressing and Fur Dyeing
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713 Gutenberg downloadsen2013Difficulty 50 (College)Twentieth Century Inventions: A Forecast
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713 Gutenberg downloadsen2010Difficulty 70 (Academic)Railway Construction
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711 Gutenberg downloadsen2015Difficulty 64 (Academic)Building with Logs
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710 Gutenberg downloadsen2019Difficulty 48 (College)Hawkins Electrical Guide v. 04 (of 10) Questions, Answers, & Illustrations, A progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications
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710 Gutenberg downloadsen2015Difficulty 75 (Expert)My Airships; The Story of My Life
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710 Gutenberg downloadsen2013Difficulty 43 (College)Der Weltverkehr Telegraphie und Post, Eisenbahnen und Schiffahrt, in ihrer Entwickelung dargestellt
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708 Gutenberg downloadsde2016An Unsinkable Titanic: Every Ship its own Lifeboat
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707 Gutenberg downloadsen2014Difficulty 65 (Academic)Pumps and Hydraulics, Part 1 (of 2)
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706 Gutenberg downloadsen2018Difficulty 50 (College)How It Flies; or, The Conquest of the Air The Story of Man's Endeavors to Fly and of the Inventions by Which He Has Succeeded
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705 Gutenberg downloadsen2017Difficulty 51 (Graduate)American Inventions and Inventors
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702 Gutenberg downloadsen2014Difficulty 43 (College)Hawkins Electrical Guide v. 02 (of 10) Questions, Answers, & Illustrations, A progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications
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702 Gutenberg downloadsen2015Difficulty 60 (Graduate)The Library of Work and Play: Working in Metals
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702 Gutenberg downloadsen2014Difficulty 33 (High School)Animal Proteins
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701 Gutenberg downloadsen2012Difficulty 57 (Graduate)A New Century of Inventions Being Designs & Descriptions of One Hundred Machines, Relating to Arts, Manufactures, & Domestic Life
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700 Gutenberg downloadsen2013Difficulty 57 (Graduate)Inventions of the Great War
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699 Gutenberg downloadsen2014Difficulty 60 (Graduate)Automobile Biographies An Account of the Lives and the Work of Those Who Have Been Identified with the Invention and Development of Self-Propelled Vehicles on the Common Roads
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696 Gutenberg downloadsen2013Difficulty 68 (Academic)Motion Picture Operation, Stage Electrics and Illusions A Practical Hand-book and Guide for Theater Electricians, Motion Picture Operators and Managers of Theaters and Productions
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696 Gutenberg downloadsen2014Difficulty 56 (Graduate)Industrial Arts Design A Textbook of Practical Methods for Students, Teachers, and Craftsmen
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695 Gutenberg downloadsen2013Difficulty 62 (Academic)The Curtiss Aviation Book
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695 Gutenberg downloadsen2021Difficulty 54 (Graduate)The story of the invention of steel pens : $b with a description of the manufacturing process by which they are produced
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694 Gutenberg downloadsen2006Difficulty 49 (College)Essays on the Microscope Containing a Practical Description of the Most Improved Microscopes, a General History of Insects, etc., etc.
Adams, George
692 Gutenberg downloadsen2020Difficulty 62 (Academic)The Crystal Palace : $b its architectural history and constructive marvels
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692 Gutenberg downloadsen2013Difficulty 78 (Expert)The Panama Canal: A history and description of the enterprise
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689 Gutenberg downloadsen2010Difficulty 60 (Graduate)Earthwork Slips and Subsidences upon Public Works Their Causes, Prevention, and Reparation
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688 Gutenberg downloadsen2017Difficulty 67 (Academic)Langley Memoir on Mechanical Flight, Parts I and II Smithsonian Contributions to Knowledge, Volume 27 Number 3, Publication 1948, 1911
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688 Gutenberg downloadsen2015Difficulty 53 (Graduate)The Chemistry of Hat Manufacturing Lectures Delivered Before the Hat Manufacturers' Association
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686 Gutenberg downloadsen2006Difficulty 57 (Graduate)The Romance of Industry and Invention
Unknown
686 Gutenberg downloadsen2011Difficulty 67 (Academic)Maxims and Instructions for the Boiler Room Useful to Engineers, Firemen & Mechanics; Relating to Steam Generators, Pumps, Appliances, Steam Heating, Practical Plumbing, etc.
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685 Gutenberg downloadsen2016Difficulty 60 (Graduate)Little Masterpieces of Science: Invention and Discovery
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684 Gutenberg downloadsen2009Difficulty 60 (Graduate)Pistol marksmanship
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684 Gutenberg downloadsen2025Difficulty 63 (Academic)The Invention of Lithography
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684 Gutenberg downloadsen2012Difficulty 60 (Graduate)The Railway Conquest of the World
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683 Gutenberg downloadsen2021Difficulty 65 (Academic)Glue, gelatine, animal charcoal, phosphorous, cements, pastes and mucilages : $b comprising the raw materials and manufacture of skin and bone glue, different varieties of glue, animal charcoal, phosphorus, gelatine and products prepared from it; isinglass and fish-glue, methods of testing glue and gelatine, and the preparation and application of cements, pastes and mucilages for use in the workshop, laboratory, and office
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682 Gutenberg downloadsen2016Difficulty 91 (Quantum Electrodynamics)The New York Subway, Its Construction and Equipment
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681 Gutenberg downloadsen2006Difficulty 62 (Academic)Pumps and Hydraulics, Part 2 (of 2)
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680 Gutenberg downloadsen2018Difficulty 56 (Graduate)Metal Spinning
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679 Gutenberg downloadsen2015Difficulty 50 (College)The Story of the Atlantic Telegraph
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679 Gutenberg downloadsen2010Difficulty 50 (College)Printing Telegraphy... A New Era Begins
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678 Gutenberg downloadsen2016Difficulty 66 (Academic)LRL Accelerators, The 184-Inch Synchrocyclotron
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677 Gutenberg downloadsen2010Difficulty 58 (Graduate)Modern Cotton Spinning Machinery, Its Principles and Construction
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676 Gutenberg downloadsen2018Difficulty 53 (Graduate)The Dominion of the Air: The Story of Aerial Navigation
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676 Gutenberg downloadsen1997Difficulty 56 (Graduate)The jute industry : $b from seed to finished cloth
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674 Gutenberg downloadsen2004Difficulty 56 (Graduate)Hardware, estimating, and mill design
Unknown
673 Gutenberg downloadsen2024Difficulty 56 (Graduate)The Municipal and Sanitary Engineer's Handbook
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672 Gutenberg downloadsen2017Difficulty 74 (Expert)A Select Collection of Valuable and Curious Arts and Interesting Experiments, Which are Well Explained and Warranted Genuine and may be Performed Easily, Safely, and at Little Expense.
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670 Gutenberg downloadsen2011Difficulty 46 (College)Torpedoes and Torpedo Warfare Containing a Complete and Concise Account of the Rise and Progress of Submarine Warfare
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669 Gutenberg downloadsen2014Difficulty 64 (Academic)Wireless Telegraph Construction For Amateurs
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667 Gutenberg downloadsen2020Difficulty 56 (Graduate)Soldering, Brazing and Welding
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666 Gutenberg downloadsen2016Difficulty 51 (Graduate)Invention: The Master-key to Progress
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663 Gutenberg downloadsen2013Difficulty 67 (Academic)Modern Copper Smelting being lectures delivered at Birmingham University, greatly extended and adapted and with and introduction on the history, uses and properties of copper.
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662 Gutenberg downloadsen2019Difficulty 61 (Academic)Scientific American, Volume 40, No. 13, March 29, 1879 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures
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662 Gutenberg downloadsen2006Difficulty 56 (Graduate)Gas and Petroleum Engines
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660 Gutenberg downloadsen2019Difficulty 57 (Graduate)Jacquard Weaving and Designing
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660 Gutenberg downloadsen2006Difficulty 43 (College)Wireless Telegraphy and Telephony Simply Explained A Practical Treatise Embracing Complete and Detailed Explanations of the Theory and Practice of Modern Radio Apparatus and Its Present Day Applications, Together With a Chapter on the Possibilities of Its Future Development
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660 Gutenberg downloadsen2021Difficulty 57 (Graduate)Farm Engines and How to Run Them: The Young Engineer's Guide
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659 Gutenberg downloadsen2013Difficulty 48 (College)Implement sheds
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659 Gutenberg downloadsen2016Difficulty 52 (Graduate)How to build a house : $b an architectural novelette
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657 Gutenberg downloadsen2025Difficulty 54 (Graduate)The Story of the Pullman Car
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657 Gutenberg downloadsen2014Difficulty 61 (Academic)Lightning Rod Conference Report of the Delegates from the Following Societies, Viz.: Meteorological Society, Royal Institute of British Architects, Society of Telegraph Engineers and of Electricians, Physical Society. With a Code of Rules for the Erection of Lightning Conductors; and Various Appendices
Unknown
653 Gutenberg downloadsen2018Difficulty 62 (Academic)Hawkins Electrical Guide v. 01 (of 10) Questions, Answers, & Illustrations, A progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications
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652 Gutenberg downloadsen2011Difficulty 66 (Academic)Steam Shovels and Steam Shovel Work
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652 Gutenberg downloadsen2014Difficulty 51 (Graduate)The Birth and Babyhood of the Telephone
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652 Gutenberg downloadsen2017Difficulty 53 (Graduate)The Atlantic Telegraph (1865)
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650 Gutenberg downloadsen2012Difficulty 62 (Academic)Synthetic resins and their raw materials A survey of the types and uses of synthetic resins, the organization of the industry, and the trade in resins and raw materials, with particular references to factors essential to tariff consideration. Under the general provisions of section 332, title III, part II, Tariff act of 1930.
United States Tariff Commission
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646 Gutenberg downloadsen2020Difficulty 58 (Graduate)The Boy's Book of Industrial Information
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646 Gutenberg downloadsen2015Difficulty 64 (Academic)Every-day Science: Volume 7. The Conquest of Time and Space
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645 Gutenberg downloadsen2013Difficulty 57 (Graduate)Ford Manual for Owners and Operators of Ford Cars and Trucks (1919)
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645 Gutenberg downloadsen2024Difficulty 68 (Academic)Handbook of Railroad Construction; For the use of American engineers. Containing the necessary rules, tables, and formulæ for the location, construction, equipment, and management of railroads, as built in the United States.
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644 Gutenberg downloadsen2018Difficulty 40 (High School)On the Development and Distribution of Primitive Locks and Keys
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638 Gutenberg downloadsen2013Difficulty 52 (Graduate)The Steam Engine Familiarly Explained and Illustrated With an historical sketch of its invention and progressive improvement; its applications to navigation and railways; with plain axioms for railway speculators
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637 Gutenberg downloadsen2017Difficulty 55 (Graduate)The Pneumatic Despatch Tube System of the Batcheller Pneumatic Tube Co. Also, Facts and General Information Relating to Pneumatic Despatch Tubes
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633 Gutenberg downloadsen2016Difficulty 64 (Academic)Paint Technology and Tests
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632 Gutenberg downloadsen2011Difficulty 57 (Graduate)Scientific American, Volume XXXVI., No. 8, February 24, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures.
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630 Gutenberg downloadsen2018Difficulty 63 (Academic)The Practical Values of Space Exploration Report of the Committee on Science and Astronautics, U.S. House of Representatives, Eighty-Sixth Congress, Second Session
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630 Gutenberg downloadsen2006Difficulty 56 (Graduate)The Methods of Glass Blowing and of Working Silica in the Oxy-Gas Flame For the use of chemical and physical students
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629 Gutenberg downloadsen2010Difficulty 57 (Graduate)Building and Flying an Aeroplane A practical handbook covering the design, construction, and operation of aeroplanes and gliders
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628 Gutenberg downloadsen2020Difficulty 51 (Graduate)Hawkins Electrical Guide v. 07 (of 10) Questions, Answers, & Illustrations, A progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications
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627 Gutenberg downloadsen2015Difficulty 67 (Academic)La Navigation Aérienne L'aviation Et La Direction Des Aérostats Dans Les Temps Anciens Et Modernes
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627 Gutenberg downloadsfr2009The Blacksmith in Eighteenth-Century Williamsburg An Account of His Life & Times and of His Craft
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627 Gutenberg downloadsen2018Difficulty 61 (Academic)The British battle fleet, Vol. 2 (of 2) : $b its inception and growth throughout the centuries to the present day
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626 Gutenberg downloadsen2025Difficulty 56 (Graduate)The Story of American Aviation
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626 Gutenberg downloadsen2018Difficulty 52 (Graduate)ABC of the steel square and its uses
Hodgson, Fred T. (Frederick Thomas)
623 Gutenberg downloadsen2015Difficulty 49 (College)From Xylographs to Lead Molds; A.D. 1440-A.D. 1921
Forster, H. C.
623 Gutenberg downloadsen2010Difficulty 59 (Graduate)Balloons, Airships, and Flying Machines
Bacon, Gertrude
622 Gutenberg downloadsen2017Difficulty 54 (Graduate)Great Facts A Popular History and Description of the Most Remarkable Inventions During the Present Century
Bakewell, Frederick C. (Frederick Collier)
622 Gutenberg downloadsen2014Difficulty 65 (Academic)Rat Proofing Buildings and Premises
Silver, James & Betts, M. C. (Morris Cotgrave) & Crouch, W. E. (Winney Elmer)
620 Gutenberg downloadsen2020Difficulty 59 (Graduate)Triumphs of Invention and Discovery in Art and Science
Fyfe, J. Hamilton (James Hamilton)
619 Gutenberg downloadsen2011Difficulty 57 (Graduate)The Classification of Patents
United States. Patent Office
618 Gutenberg downloadsen2007Difficulty 65 (Academic)The Romance of Aircraft
Smith, Laurence Yard
618 Gutenberg downloadsen2012Difficulty 52 (Graduate)Water Supply: the Present Practice of Sinking and Boring Wells With Geological Considerations and Examples of Wells Executed
Spon, Ernest
615 Gutenberg downloadsen2014Difficulty 64 (Academic)Non-technical chats on iron and steel, and their application to modern industry
Spring, La Verne W. (La Verne Ward)
612 Gutenberg downloadsen2024Difficulty 58 (Graduate)American Rural Highways
Agg, T. R. (Thomas Radford)
611 Gutenberg downloadsen2009Difficulty 74 (Expert)Paper-Cutting Machines A Primer of Information about Paper and Card Trimmers, Hand-Lever Cutters, Power Cutters and Other Automatic Machines for Cutting Paper
Gray, Niel, Jr.
611 Gutenberg downloadsen2010Difficulty 54 (Graduate)Rock Blasting A Practical Treatise on the Means Employed in Blasting Rocks for Industrial Purposes
André, George G. (George Guillaume)
611 Gutenberg downloadsen2017Difficulty 50 (College)Harper's New Monthly Magazine, Volume 2, No. 12, May, 1851.
Various
609 Gutenberg downloadsen2010Difficulty 55 (Graduate)Hawkins Electrical Guide v. 08 (of 10) Questions, Answers, & Illustrations, A progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications
Hawkins, N. (Nehemiah)
609 Gutenberg downloadsen2015Difficulty 65 (Academic)How To Build A 20-Foot Bi-Plane Glider
Morgan, Alfred Powell
609 Gutenberg downloadsen2020Difficulty 47 (College)The Useful Arts Employed in the Construction of Dwelling Houses. Second Edition
Anonymous
609 Gutenberg downloadsen2022Difficulty 65 (Academic)Protection from fire and thieves : $b Including the construction of locks, safes, strong-rooms, and fireproof buildings; burglary, and the means of preventing it; fire, its detection, prevention, and extinction; etc.
Chubb, George Hayter
608 Gutenberg downloadsen2015Difficulty 62 (Academic)Leather: From the Raw Material to the Finished Product
Adcock, K. J.
607 Gutenberg downloadsen2013Difficulty 59 (Graduate)Scientific American, Volume 22, No. 1, January 1, 1870 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures.
Various
607 Gutenberg downloadsen2005Difficulty 59 (Graduate)The slide rule : $b a practical manual
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606 Gutenberg downloadsen2025Difficulty 55 (Graduate)British Manufacturing Industries: Pottery, Glass and Silicates, Furniture and Woodwork.
Arnoux, Léon & Barff, Frederick Settle & Pollen, John Hungerford
604 Gutenberg downloadsen2012Difficulty 68 (Academic)Hemp Hurds as Paper-Making Material
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603 Gutenberg downloadsen2006Difficulty 59 (Graduate)Scaffolding : $b a treatise on the design & erection of scaffolds, gantries, and stagings, with an account of the appliances used in connection therewith for the use of contractors, builders, clerks of works, etc., with a chapter on the legal aspect of the question
Thatcher, A. G. H.
603 Gutenberg downloadsen2023Difficulty 50 (College)Nautical Charts
Putnam, G. R. (George Rockwell)
602 Gutenberg downloadsen2013Difficulty 56 (Graduate)The Valuation of Public Service Corporation Property Transactions of the American Society of Civil Engineers, vol. LXXII, June, 1911, ASCE 1190
Riggs, Henry Earle
601 Gutenberg downloadsen2016Difficulty 70 (Academic)The Radio Amateur's Hand Book A Complete, Authentic and Informative Work on Wireless Telegraphy and Telephony
Collins, A. Frederick (Archie Frederick)
600 Gutenberg downloadsen2004Difficulty 63 (Academic)Pyrotechnics: The History and Art of Firework Making
Brock, Alan St. H. (Alan St. Hill)
597 Gutenberg downloadsen2021Difficulty 62 (Academic)A Manual of Shoemaking and Leather and Rubber Products
Dooley, William H. (William Henry)
596 Gutenberg downloadsen2017Difficulty 50 (College)Microscopes and Accessory Apparatus: Catalogue No. 40
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596 Gutenberg downloadsen2011Difficulty 61 (Academic)The true history of the ghost : $b and all about metempsychosis
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595 Gutenberg downloadsen2024Difficulty 64 (Academic)History of Sanitation
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594 Gutenberg downloadsen2015Difficulty 66 (Academic)Oxy-acetylene welding manual
Campbell, Lorn
593 Gutenberg downloadsen2024Difficulty 56 (Graduate)Instruction for Using a Slide Rule
Stanley, W.
592 Gutenberg downloadsen2006Difficulty 38 (High School)The beginnings of cheap steel
Bishop, Philip W.
591 Gutenberg downloadsen2009Difficulty 63 (Academic)Hawkins Electrical Guide v. 05 (of 10) Questions, Answers, & Illustrations, A progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications
Hawkins, N. (Nehemiah)
590 Gutenberg downloadsen2015Difficulty 71 (Expert)Hawkins Electrical Guide v. 06 (of 10) Questions, Answers, & Illustrations, A progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications
Hawkins, N. (Nehemiah)
590 Gutenberg downloadsen2015Difficulty 73 (Expert)Scientific American Supplement, No. 488, May 9, 1885
Various
590 Gutenberg downloadsen2008Difficulty 50 (College)The Draughtsman's Handbook of Plan and Map Drawing Including instructions for the preparation of engineering, architectural, and mechanical drawings.
André, George G. (George Guillaume)
589 Gutenberg downloadsen2018Difficulty 50 (College)Screw-Thread Cutting by the Master-Screw Method since 1480
Battison, Edwin A.
588 Gutenberg downloadsen2010Difficulty 59 (Graduate)The proposed union of the telegraph and postal systems Statement of the Western Union Telegraph Company
Western Union Telegraph Company
588 Gutenberg downloadsen2020Difficulty 74 (Expert)Scientific American Architects and Builders Edition, No. 26, Dec., 1887
Various
587 Gutenberg downloadsen2016Difficulty 53 (Graduate)On Naval Timber and Arboriculture With Critical Notes on Authors who have Recently Treated the Subject of Planting
Matthew, Patrick
586 Gutenberg downloadsen2016Difficulty 56 (Graduate)The filtration of public water-supplies Third edition, revised and enlarged.
Hazen, Allen
586 Gutenberg downloadsen2022Difficulty 66 (Academic)Moxon's mechanick exercises, volume 1 (of 2) : $b The doctrine of handy-works applied to the art of printing
Moxon, Joseph
585 Gutenberg downloadsen2023Difficulty 61 (Academic)Records of Steam Boiler Explosions
Marten, Edward Bindon
585 Gutenberg downloadsen2014Difficulty 61 (Academic)Opening Ceremonies of the New York and Brooklyn Bridge, May 24, 1883
Kingsley, William C. & Edson, Franklin & Low, Seth
583 Gutenberg downloadsen2009Difficulty 54 (Graduate)Scientific American Supplement No. 819, September 12, 1891
Various
583 Gutenberg downloadsen2005Difficulty 59 (Graduate)Fences, Gates and Bridges: A Practical Manual
Unknown
582 Gutenberg downloadsen2018Difficulty 45 (College)The Art of Making Whiskey So As to Obtain a Better, Purer, Cheaper and Greater Quantity of Spirit, From a Given Quantity of Grain. Also, the Art of Converting It into Gin, after the Process of the Holland Distillers
Boucherie, Anthony
582 Gutenberg downloadsen2007Difficulty 54 (Graduate)The Telephone in America: Bell Telephone System
Anonymous
582 Gutenberg downloadsen2020Difficulty 64 (Academic)Scientific American Supplement, No. 447, July 26, 1884
Various
580 Gutenberg downloadsen2005Difficulty 53 (Graduate)A practical treatise on coach-building historical and descriptive : $b Containing full information of the various trades and processes involved, with hints on the proper keeping of carriages, &c.
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579 Gutenberg downloadsen2023Difficulty 55 (Graduate)Stories of Invention, Told by Inventors and their Friends
Hale, Edward Everett
579 Gutenberg downloadsen2012Difficulty 44 (College)The violin and the art of its construction: a treatise on the Stradivarius violin
Riechers, August
579 Gutenberg downloadsen2022Difficulty 48 (College)A Historical Account of Useful Inventions and Scientific Discoveries Being a manual of instruction and entertainment.
Grant, George
577 Gutenberg downloadsen2016Difficulty 62 (Academic)Aeroplane Construction and Operation
Rathbun, John B.
576 Gutenberg downloadsen2020Difficulty 57 (Graduate)An Illustrated Directory of the Specifications of All Domestic and Foreign Motor-cars and Motor Business Wagons, Gasoline, Steam and Electric, Sold in This Country, 1907
Motor, the automotive business magazine
576 Gutenberg downloadsen2021Difficulty 72 (Expert)Electricity for the farm Light, heat and power by inexpensive methods from the water wheel or farm engine
Anderson, Frederick Irving
574 Gutenberg downloadsen2008Difficulty 56 (Graduate)Locomotive Engine Running and Management
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573 Gutenberg downloadsen2020Difficulty 57 (Graduate)NREN for All: Insurmountable Opportunity
Polly, Jean Armour
573 Gutenberg downloadsen1993Difficulty 64 (Academic)The First Airplane Diesel Engine: Packard Model DR-980 of 1928
Meyer, Robert B.
573 Gutenberg downloadsen2010Difficulty 58 (Graduate)Obed Hussey, Who, of All Inventors, Made Bread Cheap
Unknown
572 Gutenberg downloadsen2006Difficulty 54 (Graduate)Scientific American Supplement, No. 365, December 30, 1882
Various
572 Gutenberg downloadsen2006Difficulty 57 (Graduate)A Practical Treatise on Gas-light Exhibiting a Summary Description of the Apparatus and Machinery Best Calculated for Illuminating Streets, Houses, and Manufactories, with Carburetted Hydrogen, or Coal-Gas, with Remarks on the Utility, Safety, and General Nature of this new Branch of Civil Economy.
Accum, Friedrich Christian
571 Gutenberg downloadsen2014Difficulty 60 (Graduate)Model aeroplanes The building of model monoplanes, biplanes, etc., together with a chapter on building a model airship
Camm, F. J. (Frederick James)
570 Gutenberg downloadsen2022Difficulty 50 (College)The Tunnel Under the Channel
Whiteside, Thomas
570 Gutenberg downloadsen2021Difficulty 69 (Academic)The Lathe & Its Uses Or, Instruction in the Art of Turning Wood and Metal. Including a Description of the Most Modern Appliances for the Ornamentation of Plane and Curved Surfaces. With an Appendix, in Which is Described an Entirely Novel Form of Lathe for Eccentric and Rose Engine Turning; a Lathe and Planing Machine Combined; and Other Valuable Matter Relating to the Art.
Lukin, James
568 Gutenberg downloadsen2019Difficulty 53 (Graduate)Theory of Silk Weaving A Treatise on the Construction and Application of Weaves, and the Decomposition and Calculation of Broad and Narrow, Plain, Novelty and Jacquard Silk Fabrics
Wolfensberger, Arnold
567 Gutenberg downloadsen2005Difficulty 48 (College)Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910 The Bergen Hill Tunnels. Paper No. 1154
Lavis, F.
566 Gutenberg downloadsen2007Difficulty 45 (College)Appletons' Popular Science Monthly, January 1900 Vol. 56, November, 1899 to April, 1900
Various
565 Gutenberg downloadsen2014Difficulty 58 (Graduate)History of the Water Supply of the World arranged in a comprehensive form from eminent authorities, containing a description of the various methods of water supply, pollution and purification of waters, and sanitary effects, with analyses of potable waters, also geology and water strata of Hamilton county, Ohio, statistics of the Ohio river, proposed water supply of Cincinnati.
Bell, Thomas J. (Thomas Jefferson)
565 Gutenberg downloadsen2021Difficulty 55 (Graduate)Practical Organ Building
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565 Gutenberg downloadsen2020Difficulty 57 (Graduate)Scientific American, Vol. XXXVII.—No. 2. [New Series.], July 14, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures
Various
565 Gutenberg downloadsen2012Difficulty 60 (Graduate)The A B C of Mining: A Handbook for Prospectors
Bramble, Charles A.
565 Gutenberg downloadsen2014Difficulty 54 (Graduate)Scientific American Supplement, No. 360, November 25, 1882
Various
564 Gutenberg downloadsen2005Difficulty 55 (Graduate)The Scholfield Wool-Carding Machines
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561 Gutenberg downloadsen2008Difficulty 55 (Graduate)Invention and Discovery: Curious Facts and Characteristic Sketches
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560 Gutenberg downloadsen2014Difficulty 60 (Graduate)Irrigation works : $b the principles on which their design and working should be based, with special details relating to Indian canals and some proposed improvements
Bellasis, E. S. (Edward Skelton)
560 Gutenberg downloadsen2017Difficulty 51 (Graduate)Steam, Steel and Electricity
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560 Gutenberg downloadsen2005Difficulty 50 (College)Motor-car principles; the gasoline automobile
Whitman, Roger B. (Roger Bradbury)
559 Gutenberg downloadsen2023Difficulty 66 (Academic)Slipstream: the autobiography of an air craftsman
Wilson, Eugene E.
559 Gutenberg downloadsen2023Difficulty 62 (Academic)Type: A Primer of Information About the Mechanical Features of Printing Types Their Sizes, Font Schemes, &c. with a Brief Description of Their Manufacture
Stewart, A. A. (Alexander A.)
559 Gutenberg downloadsen2011Difficulty 58 (Graduate)Minimum Gauge Railways
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558 Gutenberg downloadsen2013Difficulty 54 (Graduate)Scientific American Supplement, No. 1178, June 25, 1898
Various
558 Gutenberg downloadsen2006Difficulty 57 (Graduate)Engineer Port Repair Ship
United States. War Department
557 Gutenberg downloadsen2018Difficulty 55 (Graduate)The American Type of Isthmian Canal Speech by Hon. John Fairfield Dryden in the Senate of the United States, June 14, 1906
Dryden, John F. (John Fairfield)
557 Gutenberg downloadsen2008Difficulty 67 (Academic)Chambers's Edinburgh Journal, No. 455 Volume 18, New Series, September 18, 1852
Various
555 Gutenberg downloadsen2007Difficulty 63 (Academic)Introduction of the Locomotive Safety Truck Contributions from the Museum of History and Technology: Paper 24
White, John H.
555 Gutenberg downloadsen2008Difficulty 54 (Graduate)Motors
Zerbe, James Slough
555 Gutenberg downloadsen2013Difficulty 47 (College)The Popular Science Monthly, September, 1900 Vol. 57, May, 1900 to October, 1900
Various
555 Gutenberg downloadsen2014Difficulty 77 (Expert)The Silversmith's Handbook Containing full instructions for the alloying and working of silver
Gee, George E. (George Edward)
555 Gutenberg downloadsen2014Difficulty 59 (Graduate)Masters of Space Morse and the Telegraph; Thompson and the Cable; Bell and the Telephone; Marconi and the Wireless Telegraph; Carty and the Wireless Telephone
Towers, Walter Kellogg
554 Gutenberg downloadsen2004Difficulty 55 (Graduate)Stair-building and the steel square : $b A manual of practical instruction in the art of stair-building and hand-railing, and the manifold uses of the steel square
Hodgson, Fred T. (Frederick Thomas) & Williams, Morris
554 Gutenberg downloadsen2020Difficulty 49 (College)Concrete Construction for the Home and the Farm
Atlas Portland Cement Company
552 Gutenberg downloadsen2020Difficulty 53 (Graduate)Mariner Mission to Venus
Jet Propulsion Laboratory (U.S.)
552 Gutenberg downloadsen2017Difficulty 64 (Academic)Scientific American Supplement, No. 799, April 25, 1891
Various
552 Gutenberg downloadsen2004Difficulty 50 (College)Scientific American, Volume 56, No. 9, February 26, 1887
Various
551 Gutenberg downloadsen2015Difficulty 54 (Graduate)The hand-book of artillery
Roberts, Joseph
551 Gutenberg downloadsen2023Difficulty 45 (College)Cotton Manufacturing
Brooks, Christopher Parkinson
550 Gutenberg downloadsen2018Difficulty 67 (Academic)Electric Bells and All About Them: A Practical Book for Practical Men
Bottone, Selimo Romeo
550 Gutenberg downloadsen2012Difficulty 51 (Graduate)Some Mooted Questions in Reinforced Concrete Design American Society of Civil Engineers, Transactions, Paper No. 1169, Volume LXX, Dec. 1910
Godfrey, Edward
549 Gutenberg downloadsen2005Difficulty 54 (Graduate)Economy of the Round Dairy Barn
Fraser, Wilber J. (Wilber John)
548 Gutenberg downloadsen2011Difficulty 52 (Graduate)Gas-Engines and Producer-Gas Plants A Practice Treatise Setting Forth the Principles of Gas-Engines and Producer Design, the Selection and Installation of an Engine, Conditions of Perfect Operation, Producer-Gas Engines and Their Possibilities, the Care of Gas-Engines and Producer-Gas Plants, with a Chapter on Volatile Hydrocarbon and Oil Engines
Mathot, Rodolphe Edgard
548 Gutenberg downloadsen2011Difficulty 62 (Academic)Carpentry
Griffith, Ira Samuel
547 Gutenberg downloadsen2023Difficulty 46 (College)Outspinning the Spider: The Story of Wire and Wire Rope
Mumford, John Kimberly
546 Gutenberg downloadsen2014Difficulty 55 (Graduate)Scientific American Supplement, No. 392, July 7, 1883
Various
545 Gutenberg downloadsen2005Difficulty 63 (Academic)Scientific American Supplement, No. 508, September 26, 1885
Various
545 Gutenberg downloadsen2005Difficulty 49 (College)The American Electro Magnetic Telegraph With the Reports of Congress, and a Description of All Telegraphs Known, Employing Electricity or Galvanism
Vail, Alfred
544 Gutenberg downloadsen2020Difficulty 61 (Academic)Scott Greenwood and Co. Catalogue of Special Technical Works, 1903 For Manufacturers, Students, and Technical Schools, by Expert Writers
Scott, Greenwood & Co.
543 Gutenberg downloadsen2013Difficulty 86 (Specialist)Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910 The New York Tunnel Extension of the Pennsylvania Railroad. The North River Tunnels. Paper No. 1155
Hewett, Bertram Henry Majendie & Brown, W. L.
543 Gutenberg downloadsen2013Difficulty 47 (College)À terre & en l'air... Mémoires du Géant
Nadar, Félix
543 Gutenberg downloadsfr2009Friction, Lubrication and the Lubricants in Horology
Lewis, W. T. (William T.)
540 Gutenberg downloadsen2011Difficulty 55 (Graduate)The Romance of the Reaper
Casson, Herbert Newton
540 Gutenberg downloadsen2010Difficulty 48 (College)Getting Gold: A Practical Treatise for Prospectors, Miners and Students
Johnson, J. C. F. (Joseph Colin Francis)
539 Gutenberg downloadsen2006Difficulty 60 (Graduate)Scientific American Supplement, No. 647, May 26, 1888
Various
539 Gutenberg downloadsen2008Difficulty 58 (Graduate)A Manual of the Hand Lathe Comprising Concise Directions for Working Metals of All Kinds, Ivory, Bone and Precious Woods
Watson, Egbert P. (Egbert Pomeroy)
538 Gutenberg downloadsen2015Difficulty 47 (College)The 'Pioneer': Light Passenger Locomotive of 1851 United States Bulletin 240, Contributions from the Museum of History and Technology, paper 42, 1964
White, John H.
538 Gutenberg downloadsen2009Difficulty 56 (Graduate)The Pioneer Steamship Savannah: A Study for a Scale Model United States National Museum Bulletin 228, 1961, pages 61-80
Chapelle, Howard Irving
538 Gutenberg downloadsen2008Difficulty 56 (Graduate)The Telephone An Account of the Phenomena of Electricity, Magnetism, and Sound, as Involved in Its Action
Dolbear, A. E. (Amos Emerson)
538 Gutenberg downloadsen2010Difficulty 60 (Graduate)The Train Wire: A Discussion of the Science of Train Dispatching (Second Edition)
Anderson, John Alexander
538 Gutenberg downloadsen2016Difficulty 64 (Academic)Artificial Limbs
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536 Gutenberg downloadsen2017Difficulty 62 (Academic)Photo-engraving, Photo-etching and Photo-lithography in Line and Half-tone Also Collotype and Heliotype
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536 Gutenberg downloadsen2016Difficulty 53 (Graduate)The Borghesi Astronomical Clock in the Museum of History and Technology Contributions from the Museum of History and Technology, Paper 35
Bedini, Silvio A.
535 Gutenberg downloadsen2010Difficulty 68 (Academic)The Mysteryes of Nature and Art Conteined in foure severall Tretises, The first of water workes, The second of Fyer workes, The third of Drawing, Colouring, Painting, and Engraving, The fourth of divers Experiments, as wel serviceable as delightful: partly Collected, and partly of the Authors Peculiar Practice, and Invention
Bate, John
535 Gutenberg downloadsen2015Difficulty 58 (Graduate)Tunnel Engineering: A Museum Treatment
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535 Gutenberg downloadsen2012Difficulty 66 (Academic)Le Dictionnaire du NEF
Lebert, Marie
534 Gutenberg downloadsfr2008Manual for submarine mining
United States. War Department
534 Gutenberg downloadsen2024Difficulty 45 (College)Scientific American Supplement, No. 520, December 19, 1885
Various
534 Gutenberg downloadsen2004Difficulty 56 (Graduate)Handbuch der Geschichte der Buchdruckerkunst. Zweiter Teil Wiedererwachen und neue Blüte der Kunst. 1751-1882.
Lorck, Carl Berendt
533 Gutenberg downloadsde2019Letters of a Radio-Engineer to His Son
Mills, John
533 Gutenberg downloadsen2009Difficulty 47 (College)Scientific American Supplement, No. 561, October 2, 1886
Various
533 Gutenberg downloadsen2005Difficulty 50 (College)Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910 The New York Tunnel Extension of the Pennsylvania Railroad, The North River Division. Paper No. 1151
Jacobs, Charles M. (Charles Mattathias)
533 Gutenberg downloadsen2006Difficulty 66 (Academic)Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910 The New York Tunnel Extension of the Pennsylvania Railroad. The Cross-Town Tunnels. Paper No. 1158
Brace, James H. & Mason, Francis
533 Gutenberg downloadsen2006Difficulty 48 (College)Artificial and Natural Flight
Maxim, Hiram S. (Hiram Stevens)
532 Gutenberg downloadsen2014Difficulty 53 (Graduate)Scientific American Supplement, No. 711, August 17, 1889
Various
532 Gutenberg downloadsen2005Difficulty 61 (Academic)The Miner's Friend; Or, An Engine to Raise Water by Fire
Savery, Thomas
532 Gutenberg downloadsen2014Difficulty 66 (Academic)Tractor Principles The Action, Mechanism, Handling, Care, Maintenance and Repair of the Gas Engine Tractor
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532 Gutenberg downloadsen2022Difficulty 60 (Graduate)A History of Aeronautics
Vivian, Evelyn Charles & Marsh, W. Lockwood (William Lockwood)
531 Gutenberg downloadsen2018Difficulty 60 (Graduate)Hertzian Wave Wireless Telegraphy
Fleming, J. A. (John Ambrose), Sir
531 Gutenberg downloadsen2012Difficulty 67 (Academic)The Introduction of Self-Registering Meteorological Instruments
Multhauf, Robert P.
531 Gutenberg downloadsen2010Difficulty 68 (Academic)Scientific American Supplement, No. 620, November 19,1887
Various
530 Gutenberg downloadsen2005Difficulty 57 (Graduate)Scientific American, Vol. XXXIX.—No. 24. [New Series.], December 14, 1878 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures
Various
530 Gutenberg downloadsen2012Difficulty 57 (Graduate)Origin of modern calculating machines
Turck, J. A. V.
529 Gutenberg downloadsen2022Difficulty 63 (Academic)Smeaton and Lighthouses A Popular Biography, with an Historical Introduction and Sequel
Anonymous
529 Gutenberg downloadsen2010Difficulty 68 (Academic)IBM 1401 Programming Systems
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528 Gutenberg downloadsen2008Difficulty 71 (Expert)Survival at Altitude for Heavy and Very Heavy Bomber Crews
United States. Army Air Forces. Air Force, 2nd. Altitude Indoctrination Unit
526 Gutenberg downloadsen2021Difficulty 51 (Graduate)Problems of the Libyan Desert
Ball, John
525 Gutenberg downloadsen2025Difficulty 67 (Academic)Scientific American Supplement, No. 643, April 28, 1888
Various
525 Gutenberg downloadsen2005Difficulty 65 (Academic)An ice cream laboratory guide
Fisk, W. W. (Walter Warner) & Ellenberger, H. B. (Howard Bowman)
524 Gutenberg downloadsen2025Difficulty 49 (College)The story of paper-making : $b an account of paper-making from its earliest known record down to the present time
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523 Gutenberg downloadsen2018Difficulty 60 (Graduate)Engineering reminiscences contributed to "Power" and "American machinist"
Porter, Charles T. (Charles Talbot)
522 Gutenberg downloadsen2023Difficulty 47 (College)Scientific American Supplement, No. 586, March 26, 1887
Various
522 Gutenberg downloadsen2004Difficulty 51 (Graduate)The Theory and Practice of Model Aeroplaning
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522 Gutenberg downloadsen2012Difficulty 51 (Graduate)Pyrotechny : $b or, The art of making fireworks, at little cost, and with complete safety and cleanliness.
Practicus
521 Gutenberg downloadsen2025Difficulty 83 (Specialist)The evolution of the oil industry
Ross, Victor
521 Gutenberg downloadsen2025Difficulty 68 (Academic)Time and Time-Tellers
Benson, James W., active 1857-1887
521 Gutenberg downloadsen2014Difficulty 60 (Graduate)Omnibuses and cabs : $b their origin and history
Moore, Henry Charles
520 Gutenberg downloadsen2024Difficulty 68 (Academic)Photo-Lithography
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520 Gutenberg downloadsen2017Difficulty 55 (Graduate)Scientific American Supplement, No. 598, June 18, 1887
Various
520 Gutenberg downloadsen2004Difficulty 50 (College)Aeroplane construction : $b A handbook on the various methods and details of construction employed in the building of aeroplanes
Camm, Sydney
519 Gutenberg downloadsen2024Difficulty 65 (Academic)Laboratory Manual of Glass-Blowing
Frary, Francis C. (Francis Cowles)
519 Gutenberg downloadsen2009Difficulty 55 (Graduate)Type Cases and Composing-room Furniture A Primer of Information About Type Cases, Work Stands, Cabinets, Case Racks, Galley Racks, Standing Galleys, &c.
Stewart, A. A. (Alexander A.)
519 Gutenberg downloadsen2010Difficulty 57 (Graduate)Putnam's Automobile Handbook: The Care and Management of the Modern Motor-Car
Brokaw, H. Clifford (Harry Clifford) & Starr, Charles A. (Charles Ackerman)
518 Gutenberg downloadsen2021Difficulty 51 (Graduate)The Passaic Flood of 1903
Leighton, Marshall Ora
518 Gutenberg downloadsen2006Difficulty 41 (College)A Treatise on Staff Making and Pivoting Containing Complete Directions for Making and Fitting New Staffs from the Raw Material
Hall, Eugene Edward
517 Gutenberg downloadsen2007Difficulty 53 (Graduate)Life of Robert Stevenson, Civil Engineer
Stevenson, David
517 Gutenberg downloadsen2017Difficulty 64 (Academic)Report on the lands of the arid region of the United States, with a more detailed account of the lands of Utah
Powell, John Wesley & Drummond, Willis & Dutton, Clarence E. (Clarence Edward) & Gilbert, Grove Karl & Thompson, A. H. (Almon Harris)
517 Gutenberg downloadsen2023Difficulty 67 (Academic)Practical forging and art smithing
Googerty, Thomas F. (Thomas Francis)
516 Gutenberg downloadsen2022Difficulty 40 (High School)The Boys' Book of Submarines
Collins, A. Frederick (Archie Frederick) & Collins, Virgil D. (Virgil Dewey)
516 Gutenberg downloadsen2015Difficulty 49 (College)The Popular Science Monthly, October, 1900 Vol. 57, May, 1900 to October, 1900
Various
514 Gutenberg downloadsen2014Difficulty 75 (Expert)Glass Manufacture
Rosenhain, Walter
513 Gutenberg downloadsen2016Difficulty 82 (Specialist)Photogravure
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513 Gutenberg downloadsen2011Difficulty 50 (College)Scientific American Supplement, No. 288, July 9, 1881
Various
513 Gutenberg downloadsen2005Difficulty 58 (Graduate)The Engineering Contributions of Wendel Bollman
Vogel, Robert M.
513 Gutenberg downloadsen2010Difficulty 62 (Academic)The Romance of War Inventions A Description of Warships, Guns, Tanks, Rifles, Bombs, and Other Instruments and Munitions of Warfare, How They Were Invented & How They Are Employed
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513 Gutenberg downloadsen2010Difficulty 52 (Graduate)Electric Gas Lighting: How to Install Electric Gas Ignition Apparatus
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512 Gutenberg downloadsen2013Difficulty 54 (Graduate)Practical Methods of Sewage Disposal for Residences, Hotels and Institutions
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512 Gutenberg downloadsen2017Difficulty 62 (Academic)Pressure, Resistance, and Stability of Earth American Society of Civil Engineers: Transactions, Paper No. 1174, Volume LXX, December 1910
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512 Gutenberg downloadsen2005Difficulty 52 (Graduate)Scientific American Supplement, No. 514, November 7, 1885
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512 Gutenberg downloadsen2004Difficulty 54 (Graduate)Collotype and Photo-lithography
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509 Gutenberg downloadsen2015Difficulty 63 (Academic)Scamping Tricks and Odd Knowledge Occasionally Practised upon Public Works
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509 Gutenberg downloadsen2011Difficulty 45 (College)Scientific American Supplement, No. 470, January 3, 1885
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509 Gutenberg downloadsen2004Difficulty 52 (Graduate)Scientific American, Vol. XLIII.—No. 1. [New Series.], July 3, 1880 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures
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508 Gutenberg downloadsen2012Difficulty 53 (Graduate)The Aeroplane Speaks
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508 Gutenberg downloadsen1997Difficulty 48 (College)The Sperry Gyro-Compass
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508 Gutenberg downloadsen2016Difficulty 55 (Graduate)Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910 The New York Tunnel Extension of the Pennsylvania Railroad. The East River Tunnels. Paper No. 1159
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508 Gutenberg downloadsen2006Difficulty 42 (College)Manuel complet des fabricans de chapeaux en tous genres
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506 Gutenberg downloadsfr2006Flat Machine Knitting and Fabrics
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504 Gutenberg downloadsen2018Difficulty 47 (College)Scientific American Supplement, No. 446, July 19, 1884
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503 Gutenberg downloadsen2004Difficulty 55 (Graduate)A Treatise on Hat-Making and Felting Including a Full Exposition of the Singular Properties of Fur, Wool, and Hair
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501 Gutenberg downloadsen2014Difficulty 66 (Academic)Handbuch der chemischen Technologie Achte Auflage
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501 Gutenberg downloadsde2018Scientific American Supplement, No. 717, September 28, 1889
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501 Gutenberg downloadsen2006Difficulty 53 (Graduate)Signalling across space without wires being a description of the work of Hertz & his successors
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501 Gutenberg downloadsen2022Difficulty 60 (Graduate)Lippincott's Magazine of Popular Literature and Science, Volume 11, No. 22, January, 1873
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499 Gutenberg downloadsen2004Difficulty 54 (Graduate)The Century of Inventions of the Marquis of Worcester from the Original MS., with Historical and Explanatory Notes and a Biographical Memoir
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499 Gutenberg downloadsen2015Difficulty 68 (Academic)Automobiles
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498 Gutenberg downloadsen2024Difficulty 52 (Graduate)Engineers and their triumphs the story of the locomotive, the steamship, bridge building, tunnel making
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498 Gutenberg downloadsen2022Difficulty 47 (College)A Story of the Telegraph
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497 Gutenberg downloadsen2016Difficulty 66 (Academic)Coal, and What We Get from It
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496 Gutenberg downloadsen2010Difficulty 57 (Graduate)Scientific American Supplement, No. 611, September 17, 1887
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496 Gutenberg downloadsen2005Difficulty 50 (College)Home-made Toy Motors A practical handbook giving detailed instructions for building simple but operative electric motors
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495 Gutenberg downloadsen2020Difficulty 46 (College)Scientific American Supplement, No. 299, September 24, 1881
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495 Gutenberg downloadsen2005Difficulty 60 (Graduate)The telephone : $b a lecture entitled Researches in electric telephony
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495 Gutenberg downloadsen2017Difficulty 67 (Academic)Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910 The Site of the Terminal Station. Paper No. 1157
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495 Gutenberg downloadsen2006Difficulty 52 (Graduate)Machines at Work
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494 Gutenberg downloadsen2017Difficulty 37 (High School)Scientific American Supplement, No. 821, September 26, 1891
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494 Gutenberg downloadsen2004Difficulty 55 (Graduate)History of the Transformer
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493 Gutenberg downloadsen2018Difficulty 59 (Graduate)Scientific American Supplement, No. 1082, September 26, 1896
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493 Gutenberg downloadsen2008Difficulty 55 (Graduate)The Industrial Canal and Inner Harbor of New Orleans History, Description and Economic Aspects of Giant Facility Created to Encourage Industrial Expansion and Develop Commerce
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493 Gutenberg downloadsen2010Difficulty 57 (Graduate)Les Merveilles de la Locomotion
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492 Gutenberg downloadsfr2013India and Indian Engineering. Three lectures delivered at the Royal Engineer Institute, Chatham, in July 1872
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491 Gutenberg downloadsen2017Difficulty 66 (Academic)British Canals: Is their resuscitation practicable?
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490 Gutenberg downloadsen2014Difficulty 68 (Academic)From Paper-mill to Pressroom
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490 Gutenberg downloadsen2015Difficulty 60 (Graduate)Linotype mechanism
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490 Gutenberg downloadsen2023Difficulty 46 (College)Scientific American Supplement, No. 484, April 11, 1885
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490 Gutenberg downloadsen2004Difficulty 55 (Graduate)Shipbuilding from its beginnings. Vol. 2 (of 3)
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490 Gutenberg downloadsen2024Difficulty 57 (Graduate)The Microscope
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489 Gutenberg downloadsen2020Difficulty 65 (Academic)Electricity in Locomotion An Account of Its Mechanism, Its Achievements, and Its Prospects
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488 Gutenberg downloadsen2016Difficulty 62 (Academic)How to become an engineer : $b containing full instructions how to proceed in order to become a locomotive engineer : also directions for building a model locomotive; together with a full description of everything an engineer should know
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488 Gutenberg downloadsen2014Difficulty 43 (College)The Details of the Rocket System
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488 Gutenberg downloadsen2018Difficulty 67 (Academic)The Road
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488 Gutenberg downloadsen2021Difficulty 63 (Academic)Scientific American Supplement, No. 315, January 14, 1882
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487 Gutenberg downloadsen2006Difficulty 63 (Academic)Automata Old and New
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486 Gutenberg downloadsen2017Difficulty 62 (Academic)Home-made Electrical Apparatus
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486 Gutenberg downloadsen2020Difficulty 46 (College)Scientific American Supplement, No. 613, October 1, 1887
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486 Gutenberg downloadsen2005Difficulty 63 (Academic)The Future of Road-making in America
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486 Gutenberg downloadsen2010Difficulty 58 (Graduate)40 years / 40 años / 40 ans
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485 Gutenberg downloadsen2010Difficulty 62 (Academic)Scientific American Supplement, No. 795, March 28, 1891
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484 Gutenberg downloadsen2004Difficulty 62 (Academic)The Gunner's Examiner
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484 Gutenberg downloadsen2015Difficulty 56 (Graduate)Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 Federal Investigations of Mine Accidents, Structural Materials and Fuels. Paper No. 1171
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484 Gutenberg downloadsen2006Difficulty 61 (Academic)Description of the Process of Manufacturing Coal Gas, for the Lighting of Streets Houses, and Public Buildings With Elevations, Sections, and Plans of the Most Improved Sorts of Apparatus Now Employed at the Gas Works in London and the Principal Provincial Towns of Great Britain; Accompanied With Comparative Estimates, Exhibiting the Most Economical Mode of Procuring This Species of Light
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483 Gutenberg downloadsen2020Difficulty 70 (Academic)Gas Burners Old and New A historical and descriptive treatise on the progress of invention in gas lighting, embracing an account of the theory of luminous combustion
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483 Gutenberg downloadsen2021Difficulty 61 (Academic)The Solution of the Pyramid Problem; or, Pyramid Discoveries With a New Theory as to their Ancient Use
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483 Gutenberg downloadsen2012Difficulty 51 (Graduate)Time and Clocks: A Description of Ancient and Modern Methods of Measuring Time
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482 Gutenberg downloadsen2017Difficulty 48 (College)Dirigible Balloons
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481 Gutenberg downloadsen2020Difficulty 57 (Graduate)The development of armor-piercing shells (with suggestions for their improvement)
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481 Gutenberg downloadsen2010Difficulty 59 (Graduate)Chimneys & Fireplaces They Contribute to the Health Comfort and Happiness of the Farm Family - How to Build Them
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480 Gutenberg downloadsen2015Difficulty 51 (Graduate)Lessons in Wireless Telegraphy
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480 Gutenberg downloadsen2020Difficulty 56 (Graduate)Scientific American, Volume 17, No. 26 December 28, 1867 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures.
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480 Gutenberg downloadsen2005Difficulty 58 (Graduate)Project Gutenberg "10K" DVD
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478 Gutenberg downloadsen2004Difficulty 49 (College)The stereoscope : $b its history, theory, and construction, with its application to the fine and useful arts and to education
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478 Gutenberg downloadsen2025Difficulty 66 (Academic)Preliminary Specifications: Programmed Data Processor Model Three (PDP-3) October, 1960
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477 Gutenberg downloadsen2009Difficulty 58 (Graduate)Scientific American Supplement, No. 530, February 27, 1886
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476 Gutenberg downloadsen2004Difficulty 58 (Graduate)Scientific American magazine Vol 2. No. 3 Oct 10 1846 The Advocate of Industry and Journal of Scientific, Mechanical and Other Improvements
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474 Gutenberg downloadsen2009Difficulty 49 (College)Hoisting Appliances
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473 Gutenberg downloadsen2022Difficulty 51 (Graduate)How to Make Electrical Machines Containing Full Directions for Making Electrical Machines, Induction Coils, Dynamos, and Many Novel Toys to Be Worked by Electricity
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473 Gutenberg downloadsen2013Difficulty 50 (College)L'A. B. C. de l'aviation: Biplans et monoplans
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473 Gutenberg downloadsfr2010Practical hints to builders and those contemplating building Facts worth considering relating to foundation, cellar, kitchen, chimney, cistern, brick-work, mortar, heating, ventilation, the roof, and many items of interest to builders.
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473 Gutenberg downloadsen2022Difficulty 50 (College)Scientific American Supplement, No. 595, May 28, 1887
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473 Gutenberg downloadsen2004Difficulty 52 (Graduate)Flying Machines Today
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472 Gutenberg downloadsen2016Difficulty 61 (Academic)Three textile raw materials and their manufacture
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471 Gutenberg downloadses2010Scientific American, Vol. XXXIX.No. 6. [New Series.], August 10, 1878
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471 Gutenberg downloadsen2013Difficulty 54 (Graduate)The Petrol Engine A Text-book dealing with the Principles of Design and Construction, with a Special Chapter on the Two-stroke Engine
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470 Gutenberg downloadsen2024Difficulty 58 (Graduate)Scientific American Supplement, No. 363, December 16, 1882
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470 Gutenberg downloadsen2005Difficulty 62 (Academic)Aeroplanes
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469 Gutenberg downloadsen1998Difficulty 46 (College)Ancient and modern engineering and the Isthmian canal
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469 Gutenberg downloadsen2025Difficulty 50 (College)Fulton's "Steam Battery": Blockship and Catamaran
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469 Gutenberg downloadsen2010Difficulty 57 (Graduate)Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910 The New York Tunnel Extension of the Pennsylvania Railroad. The East River Division. Paper No. 1152
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468 Gutenberg downloadsen2023Difficulty 64 (Academic)The Traveling Engineers' Association to Improve the Locomotive Engine Service of American Railroads Examination Questions and Answers for Firemen for Promotion and New Men for Employment
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468 Gutenberg downloadsen2006Difficulty 49 (College)Elektrotechnisches Experimentierbuch: Eine Anleitung zur Ausführung elektrotechnischer Experimente unter Verwendung einfachster, meist selbst herzustellender Hilfsmittel
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467 Gutenberg downloadsde2022Scientific American Supplement, No. 441, June 14, 1884.
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467 Gutenberg downloadsen2005Difficulty 56 (Graduate)The Boot and Shoe Manufacturers' Assistant and Guide. Containing a Brief History of the Trade. History of India-rubber and Gutta-percha, and Their Application to the Manufacture of Boots and Shoes. Full Instructions in the Art, With Diagrams and Scales, Etc., Etc. Vulcanization and Sulphurization, English and American Patents. With an Elaborate Treatise on Tanning.
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467 Gutenberg downloadsen2019Difficulty 62 (Academic)Is a Ship Canal Practicable? Notes, Historical and Statistical, Upon the Projected Routes for an Interoceanic Ship Canal Between the Atlantic and Pacific Oceans, in Which is Included a Short Account of the Character and Influence of the Canal of Suez, and the Probable Effects Upon the Commerce of the World of the Two Canals, Regarded Either as Rivals, or as Parts of One System of Interoceanic Navigation
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466 Gutenberg downloadsen2020Difficulty 60 (Graduate)Report on the Department of Ports and Harbours for the Year 1890-91
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466 Gutenberg downloadsen2007Difficulty 69 (Academic)Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910 The New York Tunnel Extension of the Pennsylvania Railroad The Terminal Station - West
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465 Gutenberg downloadsen2003Difficulty 57 (Graduate)Transactions of the American Society of Civil Engineers, Vol. LXX, Dec. 1910 A Concrete Water Tower, Paper No. 1173
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465 Gutenberg downloadsen2006Difficulty 45 (College)'Return Loads' to Increase Transport Resources by Avoiding Waste of Empty Vehicle Running.
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463 Gutenberg downloadsen2006Difficulty 69 (Academic)Scientific American magazine, Vol. 2 Issue 1 The advocate of Industry and Journal of Scientific, Mechanical and Other Improvements
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463 Gutenberg downloadsen2009Difficulty 52 (Graduate)Scientific American Supplement, No. 443, June 28, 1884
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463 Gutenberg downloadsen2005Difficulty 53 (Graduate)The Steam Fire Engine and the Old-time Fire Bell
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460 Gutenberg downloadsen2011Difficulty 54 (Graduate)Scientific American Supplement, No. 324, March 18, 1882
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459 Gutenberg downloadsen2005Difficulty 57 (Graduate)Scientific American Supplement, No. 810, July 11, 1891
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458 Gutenberg downloadsen2005Difficulty 51 (Graduate)Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon
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457 Gutenberg downloadsen2005Difficulty 56 (Graduate)Scientific American Supplement, No. 384, May 12, 1883
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457 Gutenberg downloadsen2005Difficulty 46 (College)Scientific American Supplement, No. 623, December 10, 1887
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457 Gutenberg downloadsen2005Difficulty 60 (Graduate)A Complete List of the Books Included in the S. & C. Series of Elementary Manuals for Mechanics and Students published by E. & F. N. Spon, Ltd., London. January 1912
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456 Gutenberg downloadsen2013Difficulty 57 (Graduate)Scientific American Supplement, No. 787, January 31, 1891
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456 Gutenberg downloadsen2004Difficulty 53 (Graduate)The Isthmus of Suez Question
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454 Gutenberg downloadsen2010Difficulty 53 (Graduate)The Advance of Science in the Last Half-Century
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452 Gutenberg downloadsen2007Difficulty 43 (College)Scientific American Supplement, No. 421, January 26, 1884
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451 Gutenberg downloadsen2005Difficulty 56 (Graduate)Scientific American Supplement, No. 497, July 11, 1885
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449 Gutenberg downloadsen2006Difficulty 49 (College)Motor Transports in War
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448 Gutenberg downloadsen2018Difficulty 63 (Academic)Wireless Transmission of Photographs Second Edition, Revised and Enlarged 1919
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444 Gutenberg downloadsen2018Difficulty 38 (High School)Scientific American Supplement, No. 483, April 4, 1885
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444 Gutenberg downloadsen2004Difficulty 55 (Graduate)Tri-nitro-glycerine, as Applied in the Hoosac Tunnel, Submarine Blasting, etc., etc., etc.
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444 Gutenberg downloadsen2021Difficulty 65 (Academic)Scientific American Supplement, No. 531, March 6, 1886
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443 Gutenberg downloadsen2004Difficulty 51 (Graduate)On the Construction of a Silvered Glass Telescope Fifteen and a half inches in aperture, and its use in celestial photography
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442 Gutenberg downloadsen2016Difficulty 61 (Academic)Scientific American Supplement, No. 794, March 21, 1891
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442 Gutenberg downloadsen2005Difficulty 52 (Graduate)Transactions of the American Society of Civil Engineers, Vol. LXVIII, Sept. 1910 The New York Tunnel Extension of the Pennsylvania Railroad. Paper No. 1150
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436 Gutenberg downloadsen2022Difficulty 61 (Academic)Engineering Bulletin No 1: Boiler and Furnace Testing
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435 Gutenberg downloadsen2006Difficulty 46 (College)Rubber Hand Stamps and the Manipulation of Rubber A practical treatise on the manufacture of India rubber hand stamps, small articles of India rubber, the hektograph, special inks, cements, and allied subjects
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435 Gutenberg downloadsen2004Difficulty 42 (College)Scientific American Supplement, No. 385, May 19, 1883
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434 Gutenberg downloadsen2005Difficulty 58 (Graduate)The Invention of Typography A Brief Sketch of the Invention of Printing and How it Came About
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433 Gutenberg downloadsen2024Difficulty 70 (Academic)Scientific American Supplement, No. 312, December 24, 1881
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432 Gutenberg downloadsen2006Difficulty 54 (Graduate)Scientific American Supplement, No. 433, April 19, 1884
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432 Gutenberg downloadsen2005Difficulty 66 (Academic)Scientific American Supplement, No. 648, June 2, 1888.
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432 Gutenberg downloadsen2011Difficulty 54 (Graduate)Carpets
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431 Gutenberg downloadsen2018Difficulty 54 (Graduate)Scientific American Supplement, No. 275, April 9, 1881
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430 Gutenberg downloadsen2010Difficulty 76 (Expert)Scientific American Supplement No. 822, October 3, 1891
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429 Gutenberg downloadsen2005Difficulty 55 (Graduate)The Wright Brothers
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427 Gutenberg downloadsen2022Difficulty 56 (Graduate)ASCE 1193: The Water-Works and Sewerage of Monterrey, N. L., Mexico The 4th article from the June, 1911, Volume LXXII, Transactions of the American Society of Civil Engineers. Paper No. 1193, Feb. 1, 1911.
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426 Gutenberg downloadsen2011Difficulty 55 (Graduate)Careers in Atomic Energy
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426 Gutenberg downloadsen2013Difficulty 68 (Academic)Manufacturing Cost Data on Artificial Ice
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426 Gutenberg downloadsen2013Difficulty 62 (Academic)Transactions of the American Society of Civil Engineers, Vol. LXX, Dec. 1910 Locomotive Performance On Grades Of Various Lengths, Paper No. 1172
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426 Gutenberg downloadsen2006Difficulty 47 (College)Pulp and Paper Magazine, Vol. XIII, No. 20, October 15, 1916 A Semi-Monthly Magazine Devoted to the Science and Practice of the Pulp and Paper Manufacturing Industry with an Up-to-date Review of Conditions in the Allied Trades.
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425 Gutenberg downloadsen2016Difficulty 63 (Academic)Seattle Car & Foundry Company, Catalogue No. 3, December, 1913
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423 Gutenberg downloadsen2006Difficulty 60 (Graduate)Scientific American Supplement, No. 455, September 20, 1884
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423 Gutenberg downloadsen2004Difficulty 57 (Graduate)A Text-book of Paper-making
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334 Gutenberg downloadsen2020Difficulty 69 (Academic)Der Schiffbau seit seiner Entstehung, Band 1
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333 Gutenberg downloadsde2025Traité des Arènes construites au Pays de Liége, pour l'écoulement et l'épuisement des eaux dans les ouvrages souterrains des exploitations de mines de houille
Crassier, L.-M.-G de
332 Gutenberg downloadsfr2008Pegasus : $b problems of transportation
Fuller, J. F. C. (John Frederick Charles)
331 Gutenberg downloadsen2025Difficulty 55 (Graduate)The Memoirs of Charles H. Cramp
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331 Gutenberg downloadsen2018Difficulty 63 (Academic)"Puffing Billy" and the Prize "Rocket" or, the story of the Stephensons and our Railways.
Knight, Helen C. (Helen Cross)
330 Gutenberg downloadsen2012Difficulty 42 (College)Der Vogelflug als Grundlage der Fliegekunst Ein Beitrag zur Systematik der Flugtechnik
Lilienthal, Otto
328 Gutenberg downloadsde2017Metropolitan Subway and Elevated Systems Bulletin 49
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328 Gutenberg downloadsen2017Difficulty 58 (Graduate)The Problem of Manflight
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328 Gutenberg downloadsen2017Difficulty 55 (Graduate)Lichtbild- und Kino-Technik Lichtbühnen-Bibliothek Nr. 1
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327 Gutenberg downloadsde2015Die Säge: Ein Rückblick auf vier Jahrtausende
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326 Gutenberg downloadsde2019The Journal of Electricity, Power and Gas, Volume XX, No. 18, May 2, 1908 Devoted to the Conversion, Transmission and Distribution of Energy
Various
326 Gutenberg downloadsen2018Difficulty 61 (Academic)The Oak Ridge ALGOL Compiler for the Control Data Corporation 1604 Preliminary Programmer's Manual
Bumgarner, L. L.
326 Gutenberg downloadsen2015Difficulty 52 (Graduate)How to get an air job
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324 Gutenberg downloadsen2023Difficulty 53 (Graduate)The Daguerreian Journal, Vol. II, No. 2, June 1, 1851
Various
324 Gutenberg downloadsen2020Difficulty 62 (Academic)Two men on a mill : $b The story of the restoration of Baxter's Mill
Castonguay, A. Harold
324 Gutenberg downloadsen2023Difficulty 53 (Graduate)Facts and Figures Concerning the Hoosac Tunnel
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323 Gutenberg downloadsen2012Difficulty 64 (Academic)Refraction and muscular imbalance, as simplified through the use of the ski-optometer
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323 Gutenberg downloadsen2023Difficulty 67 (Academic)Remarks on the Proposed Railway Between Birmingham and London
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323 Gutenberg downloadsen2017Difficulty 55 (Graduate)Werner von Siemens, der Begründer der modernen Elektrotechnik
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323 Gutenberg downloadsde2014The New Wonder of the World: Buffalo, the Electric City
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322 Gutenberg downloadsen2020Difficulty 56 (Graduate)C.A. Coey's School of Motoring, 1424-26 Michigan Ave. Chicago
Coey, Charles Andrew
321 Gutenberg downloadsen2015Difficulty 50 (College)Improvement in Fire-Arms and in the Apparatus Used Therewith United States Patent Office Application
Colt, Samuel
321 Gutenberg downloadsen2015Difficulty 52 (Graduate)Preliminary Report on Gowganda Mining Division District of Nipissing Ontario
Collins, W. H. (William Henry)
321 Gutenberg downloadsen2021Difficulty 60 (Graduate)Die Geschichte der Dampfmaschine bis James Watt
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320 Gutenberg downloadsde2016A Lost Chapter in the History of the Steamboat
Latrobe, John H. B. (John Hazlehurst Boneval)
319 Gutenberg downloadsen2020Difficulty 56 (Graduate)The Way of the Air: A Description of Modern Aviation
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319 Gutenberg downloadsen2016Difficulty 51 (Graduate)Sciopticon: Einführung in die Projections-Kunst
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318 Gutenberg downloadsde2014Tinting and toning of Eastman positive motion picture film : $b Second edition—revised
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318 Gutenberg downloadsen2023Difficulty 57 (Graduate)International Bridge Authority, Sault Ste. Marie
Anonymous
317 Gutenberg downloadsen2020Difficulty 54 (Graduate)An Attempt to Analyse the Automaton Chess Player of Mr. De Kempelen To Which is Added, a Copious Collection of the Knight's Moves over the Chess Board
Willis, Robert
316 Gutenberg downloadsen2020Difficulty 56 (Graduate)Primeira origem da arte de imprimir dada à luz pelo primeiros characteres
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316 Gutenberg downloadspt2006Weale's Series of Scientific and Technical Works
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316 Gutenberg downloadsen2020Difficulty 55 (Graduate)Schöpfungen der Ingenieurtechnik der Neuzeit
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315 Gutenberg downloadsde2014De drooglegging der Zuiderzee. Het plan J. Ulehake contra het plan C. Lely
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314 Gutenberg downloadsnl2011Die Technik der Lastenförderung einst und jetzt Eine Studie über die Entwicklung der Hebemaschinen und ihren Einfluß auf Wirtschaftsleben und Kulturgeschichte
Kammerer, Otto
314 Gutenberg downloadsde2018Report of the Knaresbrough Rail-way Committee
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314 Gutenberg downloadsen2007Difficulty 69 (Academic)Technik der Bronzeplastik
Lüer, Hermann
313 Gutenberg downloadsde2016The construction and maintenance of earth roads
Lyman, Richard Roswell
313 Gutenberg downloadsen2022Difficulty 51 (Graduate)Aviation Book
Davis, Haywood Leslie
312 Gutenberg downloadsen2020Difficulty 45 (College)The Making of a Man: Being a Description of Artificial Limbs and How They May Be Adopted by Those Who Have Suffered Loss of Their Natural Limbs
George R. Fuller Co. (Rochester, N.Y.)
312 Gutenberg downloadsen2021Difficulty 58 (Graduate)The Dry Collodion Process
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311 Gutenberg downloadsen2020Difficulty 57 (Graduate)Das lebende Lichtbild: Entwicklung, Wesen und Bedeutung des Kinematographen
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310 Gutenberg downloadsde2017Karte und Kroki
Wolff, Hans
310 Gutenberg downloadsde2015The art of lead burning : $b a practical treatise explaining the apparatus and processes.
Fay, C. H.
310 Gutenberg downloadsen2016Difficulty 48 (College)The Mentor: Reclaiming the Desert, Vol. 6, Num. 17, Serial No. 165, October 15, 1918
Blanchard, C. J. (Clarence John)
308 Gutenberg downloadsen2015Difficulty 59 (Graduate)Aeolus; or, the future of the flying machine
Stewart, Oliver, Major
304 Gutenberg downloadsen2025Difficulty 58 (Graduate)Søren Hjorth: Inventor of the Dynamo-electric Principle
Smith, Sigurd
301 Gutenberg downloadsen2021Difficulty 63 (Academic)Geld und Erfahrung
Eyth, Max
300 Gutenberg downloadsde2015Il nuovo lume delle gioie Opera utilissima ad'ogni persona, così a orefici, e speciali, per l'arte pratico.
Caliari, Pietro
300 Gutenberg downloadsit2017Omhoog in het luchtruim! Praatje over het luchtvaartvraagstuk De Aarde en haar Volken, 1908
Uildriks, Frederike van
299 Gutenberg downloadsnl2004Books Relating to Applied Science, Published by E & F. N. Spon, 1887.
E. & F. N. Spon
298 Gutenberg downloadsen2019Difficulty 62 (Academic)Darstellende Geometrie des Geländes und verwandte Anwendungen der Methode der kotierten Projektionen
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298 Gutenberg downloadsde2018Wireless Possibilities
Low, A. M. (Archibald Montgomery)
298 Gutenberg downloadsen2021Difficulty 58 (Graduate)The British Journal of Photography, No. 613, Vol. XIX, February 2, 1872
Various
296 Gutenberg downloadsen2019Difficulty 62 (Academic)Die Anfänge der Naturbeherrschung. 1. Frühformen der Mechanik
Weule, Karl
295 Gutenberg downloadsde2017De afsluiting en droogmaking der Zuiderzee. Weerlegging van bezwaren. uitgegeven door de Zuiderzee-Vereeniging
Beekman, A. A. (Anton Albert)
294 Gutenberg downloadsnl2011Fête aérostatique, qui sera célébrée aujourd'hui au champ de Mars; Aréostation: établissement d'une compagnie aéronautique
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294 Gutenberg downloadsfr2006L'Illustration, No. 3236, 4 Mars 1905
Various
294 Gutenberg downloadsfr2010Vasárnapi Könyv. 1914. Első félév 15. füzet
Various
294 Gutenberg downloadshu2009Chambers's Journal of Popular Literature, Science, and Art, Fifth Series, No. 40, Vol. I, October 4, 1884
Various
293 Gutenberg downloadsen2021Difficulty 52 (Graduate)Cork: Being the story of the origin of cork, the processes employed in its manufacture & its various uses in the world to-day
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290 Gutenberg downloadsen2023Difficulty 68 (Academic)Ontwerp van wet tot afsluiting en droogmaking van de Zuiderzee met toelichtende memorie
Lely, Cornelis
289 Gutenberg downloadsnl2011L'ebook a 40 ans (1971-2011)
Lebert, Marie
288 Gutenberg downloadsfr2011La web, una enciclopedia multilingüe
Lebert, Marie
287 Gutenberg downloadses2013Selenium cells : $b the construction, care and use of selenium cells with special reference to the Fritts cell
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286 Gutenberg downloadsen2020Difficulty 51 (Graduate)An account of a useful discovery to distill double the usual quantity of sea-water, by blowing showers of air up through the distilling liquor : $b and an account of the great benefit of ventilators in many instances, in preserving the health and lives of people, in slave and other transport ships ... also an account of the good effect of blowing showers of air up through milk, thereby to cure the ill taste which is occasioned by some kinds of food of cows.
Hales, Stephen
285 Gutenberg downloadsen2023Difficulty 58 (Graduate)Quo vadimus? : $b Some glimpses of the future
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285 Gutenberg downloadsen2024Difficulty 55 (Graduate)Design of a Steel Railroad Warehouse
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282 Gutenberg downloadsen2020Difficulty 44 (College)Un grand français du XVIIme siècle : Pierre Paul Riquet et le canal du Midi
Fernay, Jacques
280 Gutenberg downloadsfr2018American Horological Journal, Vol. I, No. 1, July 1869: Devoted to Pratical Horology
Unknown
277 Gutenberg downloadsen2022Difficulty 60 (Graduate)A Method of Tanning without Bark
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276 Gutenberg downloadsen2018Difficulty 60 (Graduate)The Preservation of the Exterior of Wooden Buildings
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276 Gutenberg downloadsen2020Difficulty 67 (Academic)Water and power for San Francisco from Hetch-Hetchy Valley in Yosemite National Park
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276 Gutenberg downloadsen2022Difficulty 59 (Graduate)Die Festungen gegenüber den gezogenen Geschützen
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275 Gutenberg downloadsde2010A Project for Flying: In Earnest at Last!
Hardley, Robert
272 Gutenberg downloadsen2004Difficulty 66 (Academic)Die Akkumulatoren: ihre Theorie, Herstellung, Behandlung und Verwendung.
Bermbach, Willibald
270 Gutenberg downloadsde2016Notes Upon Indigo
Hayes, John L. (John Lord)
268 Gutenberg downloadsen2020Difficulty 58 (Graduate)Report on the Plans of the Various Railways before the Examiners of the House of Commons, 1864, so far as relates to the Parish of Kensington
Broadbridge, James
268 Gutenberg downloadsen2013Difficulty 53 (Graduate)The Dominion Astrophysical Observatory, Victoria, B.C.
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268 Gutenberg downloadsen2020Difficulty 62 (Academic)Het eerste ontwerp voor de bedijking der Zuiderzee, 1848
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266 Gutenberg downloadsnl2013Bad Drains; and How to Test Them With notes on the ventilation of sewers, drains, and sanitary fittings, and the origin and transmission of zymotic disease
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265 Gutenberg downloadsen2019Difficulty 60 (Graduate)Report of the Several Works Connected with the Draining, Paving & Lighting the Parish of Saint Mary Abbotts, Kensington, 1856
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262 Gutenberg downloadsen2013Difficulty 58 (Graduate)A Description of a New-Invented Stove-Grate Shewing Its Uses and Advantages Over All Others, Both in Point of Expence, and Every Purpose of a Chamber Fire
Durno, J.
260 Gutenberg downloadsen2020Difficulty 70 (Academic)Comparison of Methods of Sewage Purification
Phillips, Theodore Clifford & Schneider, Edward John
254 Gutenberg downloadsen2019Difficulty 57 (Graduate)Le Circuit de l'Est [programme]
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253 Gutenberg downloadsfr2004Great Western Railway Instructions
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252 Gutenberg downloadsen2018Difficulty 48 (College)Comparison of Woods for Butter Boxes
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247 Gutenberg downloadsen2022Difficulty 53 (Graduate)Histoire du Canal de Suez
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236 Gutenberg downloadsfr2021A new discovery for finding the longitude
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230 Gutenberg downloadsen2025Difficulty 48 (College)The Chester and Holyhead Railway and Its Prospects
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210 Gutenberg downloadsen2020Difficulty 67 (Academic)