Curated Shelf

Physics

Popular Victorian physics — mostly outdated but historically interesting.

579 WorksDrawn from Project Gutenberg Bookshelf #667

The Notebooks of Leonardo Da Vinci — Complete
Leonardo, da Vinci
18,817 Gutenberg downloadsen2004Difficulty 52 (Graduate)
Steam, Its Generation and Use
Babcock & Wilcox Company
13,144 Gutenberg downloadsen2007Difficulty 64 (Academic)
The Story of the Heavens
Ball, Robert S. (Robert Stawell)
11,310 Gutenberg downloadsen2008Difficulty 49 (College)
A Budget of Paradoxes, Volume I
De Morgan, Augustus
10,936 Gutenberg downloadsen2007Difficulty 55 (Graduate)
The Astronomy of Milton's 'Paradise Lost'
Orchard, Thomas Nathaniel
9,344 Gutenberg downloadsen2009Difficulty 64 (Academic)
Astronomy for Amateurs
Flammarion, Camille
6,819 Gutenberg downloadsen2008Difficulty 51 (Graduate)
The Martyrs of Science, or, The lives of Galileo, Tycho Brahe, and Kepler
Brewster, David
6,486 Gutenberg downloadsen2008Difficulty 79 (Expert)
Myths and Marvels of Astronomy
Proctor, Richard A. (Richard Anthony)
5,714 Gutenberg downloadsen2008Difficulty 66 (Academic)
German Science Reader An Introduction to Scientific German, for Students of Physics, Chemistry and Engineering
Kroeh, Charles Frederick
4,164 Gutenberg downloadsde2007
A Color Notation A measured color system, based on the three qualities Hue, Value and Chroma
Munsell, A. H. (Albert Henry)
3,924 Gutenberg downloadsen2008Difficulty 51 (Graduate)
Opticks : $b or, A treatise of the reflections, refractions, inflections and colours of light
Newton, Isaac
3,181 Gutenberg downloadsen2010Difficulty 58 (Graduate)
Goethe's Theory of Colours
Goethe, Johann Wolfgang von
2,733 Gutenberg downloadsen2015Difficulty 68 (Academic)
Philosophiae Naturalis Principia Mathematica
Newton, Isaac
2,692 Gutenberg downloadsla2009
Rollo's Experiments
Abbott, Jacob
2,400 Gutenberg downloadsen2008Difficulty 35 (High School)
Novum organum : $b or, True suggestions for the interpretation of nature
Bacon, Francis
2,364 Gutenberg downloadsen2014Difficulty 71 (Expert)
Encyclopaedia Britannica, 11th Edition, "Electrostatics" to "Engis" Volume 9, Slice 3
Various
2,291 Gutenberg downloadsen2011Difficulty 66 (Academic)
On Growth and Form
Thompson, D'Arcy Wentworth
2,208 Gutenberg downloadsen2017Difficulty 53 (Graduate)
Scientific American, Volume 56, No. 9, February 26, 1887
Various
1,946 Gutenberg downloadsen2015Difficulty 54 (Graduate)
The Astronomy of the Bible An Elementary Commentary on the Astronomical References of Holy Scripture
Maunder, E. Walter (Edward Walter)
1,798 Gutenberg downloadsen2009Difficulty 73 (Expert)
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
1,794 Gutenberg downloadsen2025Difficulty 48 (College)
Radio-Activity
Rutherford, Ernest
1,767 Gutenberg downloadsen2021Difficulty 65 (Academic)
Relativity: The Special and General Theory
Einstein, Albert
1,741 Gutenberg downloadsen2009Difficulty 62 (Academic)
The reason why : $b a careful collection of many hundreds of reasons for things which, though generally believed, are imperfectly understood. A book of condensed scientific knowledge for the million
Philp, Robert Kemp
1,725 Gutenberg downloadsen2014Difficulty 86 (Specialist)
How to Use the Popular Science Library; History of Science; General Index
Serviss, Garrett Putman & Selwyn-Brown, Arthur
1,718 Gutenberg downloadsen2016Difficulty 64 (Academic)
The Foundations of Science: Science and Hypothesis, The Value of Science, Science and Method
Poincaré, Henri
1,669 Gutenberg downloadsen2012Difficulty 60 (Graduate)
Discoveries and Inventions of the Nineteenth Century
Routledge, Robert
1,507 Gutenberg downloadsen2017Difficulty 51 (Graduate)
Experiments with Alternate Currents of High Potential and High Frequency A Lecture Delivered before the Institution of Electrical Engineers, London
Tesla, Nikola
1,477 Gutenberg downloadsen2004Difficulty 63 (Academic)
Bibliographical history of electricity & magnetism, chronologically arranged
Unknown
1,436 Gutenberg downloadsen2024Difficulty 62 (Academic)
Encyclopaedia Britannica, 11th Edition, "Magnetite" to "Malt" Volume 17, Slice 4
Various
1,423 Gutenberg downloadsen2013Difficulty 67 (Academic)
Tube, Train, Tram, and Car; or, Up-to-date locomotion
Beavan, Arthur H. (Arthur Henry)
1,415 Gutenberg downloadsen2017Difficulty 62 (Academic)
Index of the Project Gutenberg Works of Benjamin Franklin
Franklin, Benjamin
1,378 Gutenberg downloadsen2019Difficulty 58 (Graduate)
Experimental Researches in Electricity, Volume 1
Faraday, Michael
1,376 Gutenberg downloadsen2005Difficulty 63 (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
1,373 Gutenberg downloadsen2009Difficulty 58 (Graduate)
On the magnet, magnetick bodies also, and on the great magnet the earth a new physiology, demonstrated by many arguments & experiments
Unknown
1,361 Gutenberg downloadsen2010Difficulty 68 (Academic)
Pierre Curie
Curie, Marie
1,316 Gutenberg downloadsen2022Difficulty 48 (College)
Physics
Tower, Willis E. (Willis Eugene) & Cope, Thomas D. (Thomas Darlington) & Smith, Charles H. (Charles Henry) & Turton, Charles M. (Charles Mark)
1,301 Gutenberg downloadsen2012Difficulty 54 (Graduate)
The Boy Electrician
Morgan, Alfred Powell
1,238 Gutenberg downloadsen2020Difficulty 47 (College)
The Concept of Nature The Tarner Lectures Delivered in Trinity College, November 1919
Whitehead, Alfred North
1,231 Gutenberg downloadsen2006Difficulty 62 (Academic)
Encyclopaedia Britannica, 11th Edition, "Liquid Gases" to "Logar" Volume 16, Slice 7
Various
1,225 Gutenberg downloadsen2013Difficulty 66 (Academic)
The principles of science : $b a treatise on logic and scientific method
Jevons, William Stanley
1,222 Gutenberg downloadsen2024Difficulty 64 (Academic)
Cosmos: A Sketch of the Physical Description of the Universe, Vol. 1
Humboldt, Alexander von
1,206 Gutenberg downloadsen2005Difficulty 67 (Academic)
History of the Conflict Between Religion and Science
Draper, John William
1,183 Gutenberg downloadsen1998Difficulty 62 (Academic)
Encyclopaedia Britannica, 11th Edition, "Hydromechanics" to "Ichnography" Volume 14, Slice 2
Various
1,146 Gutenberg downloadsen2012Difficulty 70 (Academic)
Einstein's Theories of Relativity and Gravitation A selection of material from the essays submitted in the competition for the Eugene Higgins prize of $5,000
Bird, J. Malcolm (James Malcolm)
1,137 Gutenberg downloadsen2020Difficulty 59 (Graduate)
The sidereal messenger of Galileo Galilei : $b and a part of the preface to Kepler's Dioptrics containing the original account of Galileo's astronomical discoveries
Galilei, Galileo & Kepler, Johannes
1,107 Gutenberg downloadsen2014Difficulty 70 (Academic)
Michael Faraday, His Life and Work
Thompson, Silvanus P. (Silvanus Phillips)
1,106 Gutenberg downloadsen2021Difficulty 52 (Graduate)
Popular Scientific Recreations in Natural Philosphy, Astronomy, Geology, Chemistry, etc., etc., etc.
Tissandier, Gaston
1,106 Gutenberg downloadsen2016Difficulty 62 (Academic)
Encyclopaedia Britannica, 11th Edition, "Matter" to "Mecklenburg" Volume 17, Slice 8
Various
1,104 Gutenberg downloadsen2013Difficulty 71 (Expert)
The Outline of Science, Vol. 1 (of 4) A Plain Story Simply Told
Thomson, J. Arthur (John Arthur)
1,062 Gutenberg downloadsen2007Difficulty 66 (Academic)
American Journal of Science, Vol. 1.
Various
1,052 Gutenberg downloadsen2016Difficulty 65 (Academic)
Treatise on light : $b In which are explained the causes of that which occurs in reflexion, & in refraction and particularly in the strange refraction of Iceland crystal
Huygens, Christiaan
1,050 Gutenberg downloadsen2005Difficulty 58 (Graduate)
History of the inductive sciences, from the earliest to the present time
Whewell, William
1,039 Gutenberg downloadsen2022Difficulty 52 (Graduate)
A century of science in America : $b with special reference to the American Journal of Science, 1818-1918
Unknown
1,021 Gutenberg downloadsen2024Difficulty 60 (Graduate)
The Story of Great Inventions
Burns, Elmer Ellsworth
1,014 Gutenberg downloadsen2011Difficulty 57 (Graduate)
A Popular History of Astronomy During the Nineteenth Century Fourth Edition
Clerke, Agnes M. (Agnes Mary)
1,007 Gutenberg downloadsen2009Difficulty 78 (Expert)
Zetetic astronomy: Earth not a globe! An experimental inquiry into the true figure of the earth etc.
Parallax
999 Gutenberg downloadsen2023Difficulty 57 (Graduate)
Harper's Electricity Book for Boys
Adams, Joseph H. (Joseph Henry)
997 Gutenberg downloadsen2021Difficulty 59 (Graduate)
The Principle of Relativity
Einstein, Albert & Minkowski, H. (Hermann)
991 Gutenberg downloadsen2021Difficulty 65 (Academic)
Giant brains; or, Machines that think
Berkeley, Edmund Callis
987 Gutenberg downloadsen2022Difficulty 48 (College)
The Quarterly Journal of Science, Literature and the Arts, July-December, 1827
Various
961 Gutenberg downloadsen2014Difficulty 59 (Graduate)
Reflections on the Decline of Science in England, and on Some of Its Causes
Babbage, Charles
958 Gutenberg downloadsen1998Difficulty 63 (Academic)
The Boy's Book of New Inventions
Maule, Harry E. (Harry Edward)
958 Gutenberg downloadsen2014Difficulty 60 (Graduate)
Wonderful Balloon Ascents; Or, The Conquest of the Skies A History of Balloons and Balloon Voyages
Marion, Fulgence
948 Gutenberg downloadsen1997Difficulty 59 (Graduate)
The First Airplane Diesel Engine: Packard Model DR-980 of 1928
Meyer, Robert B.
942 Gutenberg downloadsen2010Difficulty 58 (Graduate)
Fragments of Science: A Series of Detached Essays, Addresses, and Reviews. V. 1-2
Tyndall, John
927 Gutenberg downloadsen2008Difficulty 54 (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
923 Gutenberg downloadsen2020Difficulty 67 (Academic)
Studies in the History and Method of Science, vol. 1 (of 2)
Unknown
919 Gutenberg downloadsen2014Difficulty 57 (Graduate)
Woman in Science With an Introductory Chapter on Woman's Long Struggle for Things of the Mind
Zahm, J. A. (John Augustine)
908 Gutenberg downloadsen2011Difficulty 66 (Academic)
James Clerk Maxwell and Modern Physics
Glazebrook, Richard
903 Gutenberg downloadsen2021Difficulty 52 (Graduate)
Pyrometry: A Practical Treatise on the Measurement of High Temperatures
Darling, Charles R. (Charles Robert)
902 Gutenberg downloadsen2018Difficulty 71 (Expert)
Mysterious Psychic Forces An Account of the Author's Investigations in Psychical Research, Together with Those of Other European Savants
Flammarion, Camille
900 Gutenberg downloadsen2012Difficulty 55 (Graduate)
The Boy's Playbook of Science Including the Various Manipulations and Arrangements of Chemical and Philosophical Apparatus Required for the Successful Performance of Scientific Experiments in Illustration of the Elementary Branches of Chemistry and Natural Philosophy
Pepper, John Henry
898 Gutenberg downloadsen2013Difficulty 61 (Academic)
The Poetry of Science; or, Studies of the Physical Phenomena of Nature
Hunt, Robert
888 Gutenberg downloadsen2016Difficulty 79 (Expert)
The Complete Works in Philosophy, Politics and Morals of the late Dr. Benjamin Franklin, Vol. 2 [of 3]
Franklin, Benjamin
887 Gutenberg downloadsen2015Difficulty 56 (Graduate)
Galileo Galilei and the Roman Curia From Authentic Sources
Gebler, Karl von
884 Gutenberg downloadsen2019Difficulty 53 (Graduate)
Valerius Terminus: Of the Interpretation of Nature
Bacon, Francis
873 Gutenberg downloadsen2002Difficulty 60 (Graduate)
Perpetual Motion
Verance, Percy & Dircks, Henry
869 Gutenberg downloadsen2014Difficulty 65 (Academic)
Letters on Astronomy in which the Elements of the Science are Familiarly Explained in Connection with Biographical Sketches of the Most Eminent Astronomers
Olmsted, Denison
853 Gutenberg downloadsen2012Difficulty 59 (Graduate)
Astronomical Curiosities: Facts and Fallacies
Gore, J. Ellard (John Ellard)
850 Gutenberg downloadsen2012Difficulty 54 (Graduate)
The Universe a Vast Electric Organism
Warder, Geo. W. (George Woodward)
850 Gutenberg downloadsen2011Difficulty 59 (Graduate)
The Royal Institution: Its Founder and First Professors
Jones, Bence
849 Gutenberg downloadsen2014Difficulty 52 (Graduate)
A Short History of Astronomy
Berry, Arthur
846 Gutenberg downloadsen2019Difficulty 58 (Graduate)
Keely and His Discoveries: Aerial Navigation
Moore, Bloomfield H., Mrs.
845 Gutenberg downloadsen2018Difficulty 60 (Graduate)
Six Lectures on Light Delivered In The United States In 1872-1873
Tyndall, John
836 Gutenberg downloadsen2004Difficulty 63 (Academic)
Einstein, the searcher : $b his work explained from dialogues with Einstein
Moszkowski, Alexander
835 Gutenberg downloadsen2023Difficulty 61 (Academic)
Makers of Electricity
Potamian, Brother & Walsh, James J. (James Joseph)
833 Gutenberg downloadsen2014Difficulty 69 (Academic)
The Practical Astronomer Comprising illustrations of light and colours--practical descriptions of all kinds of telescopes--the use of the equatorial-transit--circular, and other astronomical instruments, a particular account of the Earl of Rosse's large telescopes, and other topics connected with astronomy
Dick, Thomas
833 Gutenberg downloadsen2017Difficulty 69 (Academic)
Curiosities of the Sky
Serviss, Garrett Putman
830 Gutenberg downloadsen2004Difficulty 60 (Graduate)
The Progress of the Century
Unknown
830 Gutenberg downloadsen2017Difficulty 69 (Academic)
Waves and ripples in water, air, and æther : $b Being a course of Christmas lectures delivered at the Royal Institution of Great Britain
Fleming, J. A. (John Ambrose), Sir
828 Gutenberg downloadsen2023Difficulty 61 (Academic)
The Scientific Monthly, October to December, 1915
Various
821 Gutenberg downloadsen1997Difficulty 64 (Academic)
On the Connexion of the Physical Sciences
Somerville, Mary
818 Gutenberg downloadsen2016Difficulty 89 (Specialist)
The Unseen World, and Other Essays
Fiske, John
818 Gutenberg downloadsen1998Difficulty 64 (Academic)
Astronomy: The Science of the Heavenly Bodies
Todd, David P. (David Peck)
813 Gutenberg downloadsen2012Difficulty 61 (Academic)
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
Lenzen, Victor F. (Victor Fritz) & Multhauf, Robert P.
812 Gutenberg downloadsen2011Difficulty 66 (Academic)
A handbook of laboratory glass-blowing
Bolas, Bernard D. (Bernard Dell)
811 Gutenberg downloadsen2010Difficulty 54 (Graduate)
Eminent literary and scientific men of Italy, Spain, and Portugal. Vol. 2 (of 3)
Montgomery, James & Shelley, Mary Wollstonecraft
809 Gutenberg downloadsen2021Difficulty 69 (Academic)
Scientific American, Volume 40, No. 13, March 29, 1879 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures
Various
807 Gutenberg downloadsen2006Difficulty 56 (Graduate)
Worlds Within Worlds: The Story of Nuclear Energy, Volume 1 (of 3) Atomic Weights; Energy; Electricity
Asimov, Isaac
807 Gutenberg downloadsen2015Difficulty 57 (Graduate)
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.
803 Gutenberg downloadsen2018Difficulty 71 (Expert)
The New Astronomy
Langley, S. P. (Samuel Pierpont)
803 Gutenberg downloadsen2021Difficulty 48 (College)
The Fourth Dimension
Hinton, Charles Howard
800 Gutenberg downloadsen2022Difficulty 52 (Graduate)
A History of Science — Volume 2
Williams, Henry Smith & Williams, Edward Huntington
799 Gutenberg downloadsen1999Difficulty 63 (Academic)
The A B C of Relativity
Russell, Bertrand
797 Gutenberg downloadsen2022Difficulty 55 (Graduate)
A Field Book of the Stars
Olcott, William Tyler
796 Gutenberg downloadsen2007Difficulty 49 (College)
Science in Short Chapters
Williams, W. Mattieu (William Mattieu)
795 Gutenberg downloadsen2017Difficulty 69 (Academic)
The Life of Galileo Galilei, with Illustrations of the Advancement of Experimental Philosophy Life of Kepler
Bethune, John Elliot Drinkwater
794 Gutenberg downloadsen2013Difficulty 74 (Expert)
Curiosities of Science, Past and Present A Book for Old and Young
Timbs, John
790 Gutenberg downloadsen2015Difficulty 66 (Academic)
The laws of contrast of colour : $b and their application to the arts of painting, decoration of buildings, mosaic work, tapestry and carpet weaving, calico printing, dress, paper staining, printing, military clothing, illumination, landscape, and flower gardening, &c.
Chevreul, M. E. (Michel Eugène)
788 Gutenberg downloadsen2025Difficulty 64 (Academic)
The Telescope
Bell, Louis
788 Gutenberg downloadsen2016Difficulty 66 (Academic)
Michael Faraday, Man of Science
Jerrold, Walter
785 Gutenberg downloadsen2014Difficulty 58 (Graduate)
The Life of Sir Isaac Newton
Brewster, David
783 Gutenberg downloadsen2016Difficulty 73 (Expert)
Philosophical Transactions of the Royal Society - Vol 1 - 1666 Giving some Accompt of the present Undertakings, Studies, and Labours of the Ingenious in many considerable parts of the World
Various
771 Gutenberg downloadsen2009Difficulty 57 (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
771 Gutenberg downloadsen2012Difficulty 56 (Graduate)
Pumps and Hydraulics, Part 1 (of 2)
Hawkins, N. (Nehemiah)
768 Gutenberg downloadsen2018Difficulty 50 (College)
A Treatise on Mechanics
Kater, Henry & Lardner, Dionysius
766 Gutenberg downloadsen2021Difficulty 60 (Graduate)
Science for the School and Family, Part I. Natural Philosophy
Hooker, Worthington
764 Gutenberg downloadsen2016Difficulty 49 (College)
Response in the Living and Non-Living
Bose, Jagadis Chandra
761 Gutenberg downloadsen2006Difficulty 65 (Academic)
A History of Science — Volume 1
Williams, Henry Smith & Williams, Edward Huntington
758 Gutenberg downloadsen1999Difficulty 65 (Academic)
Personal Recollections, from Early Life to Old Age, of Mary Somerville
Somerville, Mary
758 Gutenberg downloadsen2009Difficulty 56 (Graduate)
Biographies of distinguished scientific men. First series
Arago, F. (François)
757 Gutenberg downloadsen2005Difficulty 52 (Graduate)
The kaleidoscope : $b its history, theory and construction. With its application to the fine and useful arts
Brewster, David
755 Gutenberg downloadsen2024Difficulty 62 (Academic)
The Source and Mode of Solar Energy Throughout the Universe
Heysinger, Isaac W. (Isaac Winter)
754 Gutenberg downloadsen2018Difficulty 66 (Academic)
Astronomy Explained Upon Sir Isaac Newton's Principles And made easy to those who have not studied mathematics
Ferguson, James
753 Gutenberg downloadsen2019Difficulty 52 (Graduate)
General Science
Clark, Bertha May
748 Gutenberg downloadsen2005Difficulty 53 (Graduate)
Appletons' Popular Science Monthly, July 1899 Volume LV, No. 3, July 1899
Various
746 Gutenberg downloadsen2014Difficulty 58 (Graduate)
Michael Faraday Third Edition, with Portrait
Gladstone, J. H. (John Hall)
745 Gutenberg downloadsen2014Difficulty 61 (Academic)
The Story of Eclipses
Chambers, George F. (George Frederick)
742 Gutenberg downloadsen2008Difficulty 49 (College)
Every-day Science: Volume 6. The Conquest of Nature
Williams, Henry Smith & Williams, Edward Huntington
739 Gutenberg downloadsen2013Difficulty 53 (Graduate)
Experiments and Observations on Electricity Made at Philadelphia in America
Franklin, Benjamin
738 Gutenberg downloadsen2014Difficulty 54 (Graduate)
Langley Memoir on Mechanical Flight, Parts I and II Smithsonian Contributions to Knowledge, Volume 27 Number 3, Publication 1948, 1911
Langley, S. P. (Samuel Pierpont) & Manly, Charles M. (Charles Matthews)
738 Gutenberg downloadsen2015Difficulty 53 (Graduate)
Lord Kelvin: An account of his scientific life and work
Gray, Andrew
735 Gutenberg downloadsen2012Difficulty 66 (Academic)
The Substance of Faith Allied with Science (6th Ed.) A Catechism for Parents and Teachers
Lodge, Oliver, Sir
729 Gutenberg downloadsen2015Difficulty 61 (Academic)
Lightning Conductors: Their History, Nature, and Mode of Application
Anderson, Richard, F.C.S.
728 Gutenberg downloadsen2017Difficulty 58 (Graduate)
Faraday as a Discoverer
Tyndall, John
722 Gutenberg downloadsen1998Difficulty 56 (Graduate)
Common Science
Washburne, Carleton
717 Gutenberg downloadsen2009Difficulty 48 (College)
Autobiography of Sir George Biddell Airy
Airy, George Biddell
716 Gutenberg downloadsen2004Difficulty 59 (Graduate)
A View of Sir Isaac Newton's Philosophy
Pemberton, Henry
713 Gutenberg downloadsen2016Difficulty 63 (Academic)
Auroræ: Their Characters and Spectra
Capron, J. Rand
713 Gutenberg downloadsen2017Difficulty 52 (Graduate)
Conversations on Natural Philosophy, in which the Elements of that Science are Familiarly Explained
Marcet, Mrs. (Jane Haldimand) & Jones, Thomas P.
711 Gutenberg downloadsen2011Difficulty 50 (College)
Conversations on the Plurality of Worlds
Fontenelle, M. de (Bernard Le Bovier)
708 Gutenberg downloadsen2021Difficulty 62 (Academic)
Sidelights on Relativity
Einstein, Albert
706 Gutenberg downloadsen2005Difficulty 69 (Academic)
Appletons' Popular Science Monthly, December 1899 Vol. LVI, November, 1899 to April, 1900
Various
705 Gutenberg downloadsen2014Difficulty 72 (Expert)
Monism as Connecting Religion and Science A Man of Science
Haeckel, Ernst
705 Gutenberg downloadsen2005Difficulty 74 (Expert)
An Introduction to the History of Science
Libby, Walter
702 Gutenberg downloadsen2012Difficulty 62 (Academic)
Preliminary Discourse on the Study of Natural Philosophy
Herschel, John F. W. (John Frederick William)
702 Gutenberg downloadsen2017Difficulty 77 (Expert)
The International Monthly, Volume 5, No. 4, April, 1852
Various
696 Gutenberg downloadsen2011Difficulty 58 (Graduate)
The Plurality of Worlds
Whewell, William
693 Gutenberg downloadsen2011Difficulty 58 (Graduate)
Memoirs of the life of David Rittenhouse, LLD. F.R.S., late president of the American Philosophical Society, &c. : $b interspersed with various notices of many distinguished men : with an appendix, containing sundry philosophical and other papers, most of which have not hitherto been published
Barton, William
692 Gutenberg downloadsen2023Difficulty 68 (Academic)
Experiments and Considerations Touching Colours (1664)
Boyle, Robert
684 Gutenberg downloadsen2004Difficulty 64 (Academic)
Essays: Scientific, Political, & Speculative; Vol. 2 of 3 Library Edition (1891), Containing Seven Essays not before Republished, and Various other Additions.
Spencer, Herbert
677 Gutenberg downloadsen2016Difficulty 67 (Academic)
Worlds Within Worlds: The Story of Nuclear Energy, Volume 3 (of 3) Nuclear Fission; Nuclear Fusion; Beyond Fusion
Asimov, Isaac
672 Gutenberg downloadsen2015Difficulty 62 (Academic)
Beacon Lights of History, Volume 14: The New Era A Supplementary Volume, by Recent Writers, as Set Forth in the Preface and Table of Contents
Lord, John
670 Gutenberg downloadsen2004Difficulty 56 (Graduate)
Photographs of Nebulæ and Clusters, Made with the Crossley Reflector
Keeler, James Edward
670 Gutenberg downloadsen2011Difficulty 57 (Graduate)
The Ether of Space
Lodge, Oliver, Sir
669 Gutenberg downloadsen2012Difficulty 60 (Graduate)
Mariner Mission to Venus
Jet Propulsion Laboratory (U.S.)
668 Gutenberg downloadsen2017Difficulty 64 (Academic)
The New Physics and Its Evolution
Poincaré, Lucien
668 Gutenberg downloadsen2005Difficulty 81 (Specialist)
Essays on the Microscope Containing a Practical Description of the Most Improved Microscopes, a General History of Insects, etc., etc.
Adams, George
666 Gutenberg downloadsen2020Difficulty 62 (Academic)
Thunder and Lightning
Flammarion, Camille
666 Gutenberg downloadsen2013Difficulty 49 (College)
A History of Science — Volume 3
Williams, Henry Smith & Williams, Edward Huntington
665 Gutenberg downloadsen1999Difficulty 77 (Expert)
Popular scientific lectures
Mach, Ernst
663 Gutenberg downloadsen2012Difficulty 53 (Graduate)
Home-made Electrical Apparatus
Morgan, Alfred Powell
661 Gutenberg downloadsen2020Difficulty 46 (College)
Pleasant Ways in Science
Proctor, Richard A. (Richard Anthony)
660 Gutenberg downloadsen2017Difficulty 59 (Graduate)
周髀算經
Unknown
660 Gutenberg downloadszh2004
Scientific American, Vol. XXXVII.—No. 2. [New Series.], July 14, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures
Various
658 Gutenberg downloadsen2012Difficulty 60 (Graduate)
Harper's New Monthly Magazine, Volume 2, No. 12, May, 1851.
Various
657 Gutenberg downloadsen2010Difficulty 55 (Graduate)
Signalling across space without wires being a description of the work of Hertz & his successors
Lodge, Oliver, Sir
653 Gutenberg downloadsen2022Difficulty 60 (Graduate)
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
Hawkins, N. (Nehemiah)
649 Gutenberg downloadsen2015Difficulty 68 (Academic)
Microscopes and Accessory Apparatus: Catalogue No. 40
Leitz, Ernst
648 Gutenberg downloadsen2011Difficulty 61 (Academic)
The Popular Science Monthly, September, 1900 Vol. 57, May, 1900 to October, 1900
Various
648 Gutenberg downloadsen2014Difficulty 77 (Expert)
From Newton to Einstein: Changing Conceptions of the Universe
Harrow, Benjamin
645 Gutenberg downloadsen2019Difficulty 52 (Graduate)
Side-Lights on Astronomy and Kindred Fields of Popular Science
Newcomb, Simon
645 Gutenberg downloadsen2003Difficulty 50 (College)
Graham's Magazine, Vol. XX, No. 6, June 1842
Various
640 Gutenberg downloadsen2022Difficulty 48 (College)
The Mechanism of Life
Leduc, Stéphane
640 Gutenberg downloadsen2010Difficulty 63 (Academic)
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
Ferris, Richard
639 Gutenberg downloadsen2017Difficulty 51 (Graduate)
The Chautauquan, Vol. 05, October 1884, No. 1
Chautauqua Literary and Scientific Circle & Chautauqua Institution
639 Gutenberg downloadsen2017Difficulty 48 (College)
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
Lardner, Dionysius
638 Gutenberg downloadsen2013Difficulty 76 (Expert)
A History of Science — Volume 5
Williams, Henry Smith & Williams, Edward Huntington
637 Gutenberg downloadsen2009Difficulty 57 (Graduate)
Aether and Gravitation
Hooper, William George
636 Gutenberg downloadsen2008Difficulty 55 (Graduate)
Maria Mitchell: Life, Letters, and Journals
Mitchell, Maria
634 Gutenberg downloadsen2003Difficulty 56 (Graduate)
Experimental Determination of the Velocity of Light Made at the U.S. Naval Academy, Annapolis
Michelson, Albert A. (Albert Abraham)
633 Gutenberg downloadsen2004Difficulty 49 (College)
A Discourse Presented to the Most Serene Don Cosimo II., Great Duke of Tuscany, Concerning the Natation of Bodies Vpon, and Submersion In, the Water.
Galilei, Galileo
631 Gutenberg downloadsen2011Difficulty 67 (Academic)
Outlines of Creation
Noyce, Elisha
631 Gutenberg downloadsen2015Difficulty 68 (Academic)
Scientific American Supplement, No. 460, October 25, 1884
Various
631 Gutenberg downloadsen2004Difficulty 52 (Graduate)
Pioneers of Science
Lodge, Oliver, Sir
630 Gutenberg downloadsen2009Difficulty 50 (College)
Man or Matter Introduction to a Spiritual Understanding of Nature on the Basis of Goethe's Method of Training Observation and Thought
Lehrs, Ernst
629 Gutenberg downloadsen2004Difficulty 56 (Graduate)
The celestial worlds discover'd : $b or, conjectures concerning the inhabitants, plants and productions of the worlds in the planets
Huygens, Christiaan
629 Gutenberg downloadsen2023Difficulty 57 (Graduate)
Star-land: Being Talks With Young People About the Wonders of the Heavens
Ball, Robert S. (Robert Stawell)
627 Gutenberg downloadsen2019Difficulty 46 (College)
The logic of modern physics
Bridgman, P. W. (Percy Williams)
624 Gutenberg downloadsen2023Difficulty 70 (Academic)
Die Naturwissenschaften in ihrer Entwicklung und in ihrem Zusammenhange, II. Band Von Galilei bis zur Mitte des XVIII. Jahrhunderts
Dannemann, Friedrich
622 Gutenberg downloadsde2017
The Story of the Living Machine A Review of the Conclusions of Modern Biology in Regard to the Mechanism Which Controls the Phenomena of Living Activity
Conn, H. W. (Herbert William)
622 Gutenberg downloadsen2005Difficulty 58 (Graduate)
Scientific American, Volume 22, No. 1, January 1, 1870 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures.
Various
620 Gutenberg downloadsen2005Difficulty 59 (Graduate)
Sound
Tyndall, John
616 Gutenberg downloadsen2017Difficulty 72 (Expert)
Worlds in the making: The evolution of the universe
Arrhenius, Svante
615 Gutenberg downloadsen2022Difficulty 53 (Graduate)
The Chautauquan, Vol. 05, June 1885, No. 9
Chautauqua Literary and Scientific Circle & Chautauqua Institution
613 Gutenberg downloadsen2017Difficulty 53 (Graduate)
Scientific American Supplement, No. 598, June 18, 1887
Various
612 Gutenberg downloadsen2004Difficulty 50 (College)
The Splash of a Drop
Worthington, A. M. (Arthur Mason)
612 Gutenberg downloadsen2008Difficulty 53 (Graduate)
A New Era of Thought
Hinton, Charles Howard
609 Gutenberg downloadsen2019Difficulty 53 (Graduate)
Henri Poincaré: Biographie, Bibliographie Analytique des Écrits
Lebon, Ernest
607 Gutenberg downloadsfr2010
Lives of the electricians : $b Professors Tyndall, Wheatstone, and Morse.
Jeans, William T.
606 Gutenberg downloadsen2024Difficulty 70 (Academic)
Famous Men of Science
Bolton, Sarah Knowles
605 Gutenberg downloadsen2011Difficulty 54 (Graduate)
The Chautauquan, Vol. 04, October 1883
Chautauqua Literary and Scientific Circle & Chautauqua Institution
605 Gutenberg downloadsen2016Difficulty 50 (College)
Natural Philosophy
Ostwald, Wilhelm
604 Gutenberg downloadsen2013Difficulty 60 (Graduate)
Astronomical Myths: Based on Flammarions's "History of the Heavens"
Blake, J. F. (John Frederick) & Flammarion, Camille
602 Gutenberg downloadsen2011Difficulty 57 (Graduate)
Early American Scientific Instruments and Their Makers
Bedini, Silvio A.
602 Gutenberg downloadsen2012Difficulty 70 (Academic)
Leonardo da Vinci, Pathfinder of Science
Gillette, Henry S.
602 Gutenberg downloadsen2017Difficulty 51 (Graduate)
On the various forces of nature and their relations to each other
Faraday, Michael
602 Gutenberg downloadsen2016Difficulty 50 (College)
Records of Steam Boiler Explosions
Marten, Edward Bindon
601 Gutenberg downloadsen2014Difficulty 61 (Academic)
Sir William Herschel: His Life and Works
Holden, Edward S. (Edward Singleton)
601 Gutenberg downloadsen2009Difficulty 56 (Graduate)
Scientific American, Volume XXXVI., No. 8, February 24, 1877 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures.
Various
600 Gutenberg downloadsen2006Difficulty 54 (Graduate)
Miscellanea Curiosa, Vol. 1 Containing a collection of some of the principal phaenomena in nature, accounted for by the greatest philosophers of this age
Unknown
598 Gutenberg downloadsen2015Difficulty 61 (Academic)
Memoirs of the Distinguished Men of Science of Great Britain Living in the Years 1807-8
Walker, William
597 Gutenberg downloadsen2018Difficulty 61 (Academic)
The Herschels and Modern Astronomy
Clerke, Agnes M. (Agnes Mary)
597 Gutenberg downloadsen2021Difficulty 55 (Graduate)
The Advance of Science in the Last Half-Century
Huxley, Thomas Henry
592 Gutenberg downloadsen2005Difficulty 73 (Expert)
Untersuchungen über die radioaktiven Substanzen von Marie Curie, übersetzt und mit Litteratur-Ergänzungen versehen von W. Kaufmann
Curie, Marie
592 Gutenberg downloadsde2011
Things a Boy Should Know About Electricity Second Edition
St. John, Thomas M. (Thomas Matthew)
591 Gutenberg downloadsen2014Difficulty 48 (College)
Electricity and Magnetism
Gray, Elisha
590 Gutenberg downloadsen2010Difficulty 52 (Graduate)
New Theories in Astronomy
Stirling, William
589 Gutenberg downloadsen2014Difficulty 63 (Academic)
A Guide to the Scientific Knowledge of Things Familiar
Brewer, Ebenezer Cobham
587 Gutenberg downloadsen2012Difficulty 46 (College)
Soap-Bubbles and the Forces Which Mould Them
Boys, C. V. (Charles Vernon)
587 Gutenberg downloadsen2010Difficulty 48 (College)
Voyage to Jupiter
Morrison, David & Samz, Jane
587 Gutenberg downloadsen2019Difficulty 64 (Academic)
A Study of Splashes
Worthington, A. M. (Arthur Mason)
586 Gutenberg downloadsen2012Difficulty 58 (Graduate)
Little Journeys to the Homes of the Great - Volume 12 Little Journeys to the Homes of Great Scientists
Hubbard, Elbert
586 Gutenberg downloadsen2006Difficulty 47 (College)
Popular Books on Natural Science For Practical Use in Every Household, for Readers of All Classes
Bernstein, Aaron David
586 Gutenberg downloadsen2011Difficulty 50 (College)
The Chautauquan, Vol. 05, April 1885
Chautauqua Literary and Scientific Circle & Chautauqua Institution
586 Gutenberg downloadsen2017Difficulty 54 (Graduate)
Philosophical transactions, Vol. L. Part II. For the year 1758. Giving some account of the present undertakings, studies, and labours, of the ingenious, in many considerable parts of the world.
Various & Royal Society (Great Britain)
585 Gutenberg downloadsen2022Difficulty 49 (College)
The telephone, the microphone & the phonograph
Du Moncel, Th., comte
583 Gutenberg downloadsen2025Difficulty 66 (Academic)
The Popular Science Monthly, October, 1900 Vol. 57, May, 1900 to October, 1900
Various
581 Gutenberg downloadsen2014Difficulty 75 (Expert)
The Royal Observatory, Greenwich: A Glance at Its History and Work
Maunder, E. Walter (Edward Walter)
581 Gutenberg downloadsen2013Difficulty 60 (Graduate)
Einstein and the universe: A popular exposition of the famous theory
Nordmann, Charles
580 Gutenberg downloadsen2022Difficulty 58 (Graduate)
Appletons' Popular Science Monthly, February 1900 Vol. 56, November, 1899 to April, 1900
Various
576 Gutenberg downloadsen2014Difficulty 62 (Academic)
Appletons' Popular Science Monthly, January 1900 Vol. 56, November, 1899 to April, 1900
Various
572 Gutenberg downloadsen2014Difficulty 58 (Graduate)
Scientific American Supplement, No. 711, August 17, 1889
Various
572 Gutenberg downloadsen2005Difficulty 61 (Academic)
Sir Christopher Wren : $b Scientist, scholar and architect
Weaver, Lawrence
572 Gutenberg downloadsen2023Difficulty 52 (Graduate)
Radio-Active Substances
Curie, Marie
570 Gutenberg downloadsen2019Difficulty 63 (Academic)
Boys' second book of inventions
Baker, Ray Stannard
569 Gutenberg downloadsen2013Difficulty 57 (Graduate)
The art of glass-blowing : $b or Plain instructions for making the chemical and philosophical instruments which are formed of glass
Danger, T.-P.
567 Gutenberg downloadsen2017Difficulty 63 (Academic)
Parlour Magic
Unknown
566 Gutenberg downloadsen2015Difficulty 100 (Quantum Electrodynamics)
Scientific American Supplement, No. 365, December 30, 1882
Various
566 Gutenberg downloadsen2006Difficulty 57 (Graduate)
An original theory or new hypothesis of the universe $b founded upon the laws of nature, and solving by mathematical principles the general phænomena of the visible creation; and particularly the via lactea ...
Wright, Thomas
565 Gutenberg downloadsen2023Difficulty 57 (Graduate)
Comets and Meteors Their phenomena in all ages; their mutual relations; and the theory of their origin.
Kirkwood, Daniel
562 Gutenberg downloadsen2012Difficulty 56 (Graduate)
Half Hours With Modern Scientists: Lectures and Essays
Huxley, Thomas Henry & Barker, George F. (George Frederick) & Cope, E. D. (Edward Drinker) & Stirling, James Hutchison & Tyndall, John
562 Gutenberg downloadsen2021Difficulty 66 (Academic)
Lasers
Hellman, Hal
562 Gutenberg downloadsen2021Difficulty 59 (Graduate)
The Pneumatic Despatch Tube System of the Batcheller Pneumatic Tube Co. Also, Facts and General Information Relating to Pneumatic Despatch Tubes
Batcheller, Birney C. (Birney Clark)
562 Gutenberg downloadsen2020Difficulty 58 (Graduate)
Meteoric astronomy: A treatise on shooting-stars, fire-balls, and aerolites
Kirkwood, Daniel
561 Gutenberg downloadsen2013Difficulty 59 (Graduate)
The Seven Follies of Science [2nd ed.] A popular account of the most famous scientific impossibilities and the attempts which have been made to solve them. To which is added a small budget of interesting paradoxes, illusions, and marvels
Phin, John
561 Gutenberg downloadsen2011Difficulty 63 (Academic)
The Moon: A Popular Treatise
Serviss, Garrett Putman
560 Gutenberg downloadsen2021Difficulty 48 (College)
Recreations in Astronomy With Directions for Practical Experiments and Telescopic Work
Warren, Henry White
557 Gutenberg downloadsen2005Difficulty 50 (College)
The Secret of Life, Death and Immortality A startling proposition, with a chapter devoted to mental therapeutics and instructions for self healing
Fleetwood, Henry
555 Gutenberg downloadsen2018Difficulty 58 (Graduate)
Astronomy and General Physics Considered with Reference to Natural Theology
Whewell, William
553 Gutenberg downloadsen2021Difficulty 57 (Graduate)
Astronomy in a nutshell : $b The chief facts and principles explained in popular language for the general reader and for schools
Serviss, Garrett Putman
553 Gutenberg downloadsen2023Difficulty 60 (Graduate)
Scientific American Supplement, No. 611, September 17, 1887
Various
553 Gutenberg downloadsen2005Difficulty 50 (College)
The calculating engine
Babbage, Charles
553 Gutenberg downloadsen2023Difficulty 71 (Expert)
The Academic Gregories
Stewart, Agnes Grainger
551 Gutenberg downloadsen2016Difficulty 59 (Graduate)
A-B-C of Electricity
Meadowcroft, Wm. H. (William Henry)
550 Gutenberg downloadsen2014Difficulty 51 (Graduate)
The Heavens Above: A Popular Handbook of Astronomy
Gillet, J. A. (Joseph Anthony) & Rolfe, W. J. (William James)
550 Gutenberg downloadsen2019Difficulty 51 (Graduate)
The atom and the Bohr theory of its structure : $b an elementary presentation
Holst, Helge & Kramers, Hendrik Anthony
548 Gutenberg downloadsen2023Difficulty 65 (Academic)
Mechanics of the Household A Course of Study Devoted to Domestic Machinery and Household Mechanical Appliances
Keene, E. S. (Edward Spencer)
546 Gutenberg downloadsen2016Difficulty 65 (Academic)
Scientific American Supplement, No. 288, July 9, 1881
Various
546 Gutenberg downloadsen2005Difficulty 58 (Graduate)
How to Do Mechanical Tricks Containing Complete Instruction for Performing Over Sixty Ingenious Mechanical Tricks
Anderson, A., active 1894-1902
545 Gutenberg downloadsen2018Difficulty 44 (College)
The Einstein Theory of Relativity: A Concise Statement
Lorentz, H. A. (Hendrik Antoon)
545 Gutenberg downloadsen2004Difficulty 63 (Academic)
Easy lessons in Einstein : $b A discussion of the more intelligible features of the theory of relativity
Slosson, Edwin E. (Edwin Emery)
544 Gutenberg downloadsen2025Difficulty 50 (College)
Scientific American magazine Vol 2. No. 3 Oct 10 1846 The Advocate of Industry and Journal of Scientific, Mechanical and Other Improvements
Various
542 Gutenberg downloadsen2009Difficulty 49 (College)
Steam, Steel and Electricity
Steele, James W.
542 Gutenberg downloadsen2005Difficulty 50 (College)
Endless Amusement A Collection of Nearly 400 Entertaining Experiments in Various Branches of Science; Including Acoustics, Electricity, Magnetism, Arithmetic, Hydraulics, Mechanics, Chemistry, Hydrostatics, Optics; Wonders of the Air-Pump; All the Popular Tricks and Changes of the Cards, &c., &c. to Which is Added, a Complete System of Pyrotechny; Or, the Art of Making Fire-works.
Unknown
541 Gutenberg downloadsen2010Difficulty 100 (Quantum Electrodynamics)
Stargazing: Past and Present
Lockyer, Norman, Sir
540 Gutenberg downloadsen2016Difficulty 50 (College)
Astronomy with an Opera-glass A Popular Introduction to the Study of the Starry Heavens with the Simplest of Optical Instruments
Serviss, Garrett Putman
539 Gutenberg downloadsen2011Difficulty 59 (Graduate)
Scientific American Supplement, No. 623, December 10, 1887
Various
539 Gutenberg downloadsen2005Difficulty 60 (Graduate)
Scientific American Supplement, No. 481, March 21, 1885
Various
536 Gutenberg downloadsen2004Difficulty 55 (Graduate)
Kepler
Bryant, Walter W. (Walter William)
534 Gutenberg downloadsen2004Difficulty 65 (Academic)
Electricity
McCormick, W. H. (William Henry)
533 Gutenberg downloadsen2023Difficulty 56 (Graduate)
Scientific American Supplement, No. 299, September 24, 1881
Various
533 Gutenberg downloadsen2005Difficulty 60 (Graduate)
The Destinies of the Stars
Arrhenius, Svante
531 Gutenberg downloadsen2018Difficulty 54 (Graduate)
Through Magic Glasses and Other Lectures A Sequel to The Fairyland of Science
Buckley, Arabella B. (Arabella Burton)
531 Gutenberg downloadsen2011Difficulty 58 (Graduate)
LRL Accelerators, The 184-Inch Synchrocyclotron
Lawrence Radiation Laboratory
530 Gutenberg downloadsen2010Difficulty 58 (Graduate)
The Library of Work and Play: Electricity and Its Everyday Uses
Woodhull, John F. (John Francis)
530 Gutenberg downloadsen2014Difficulty 48 (College)
The Wonders of Optics
Marion, Fulgence
530 Gutenberg downloadsen2021Difficulty 51 (Graduate)
International Language and Science Considerations on the Introduction of an International Language into Science
Pfaundler von Hadermur, Leopold & Couturat, Louis & Jespersen, Otto & Lorenz, Richard & Ostwald, Wilhelm
529 Gutenberg downloadsen2017Difficulty 65 (Academic)
Lectures on Stellar Statistics
Charlier, C. V. L. (Carl Vilhelm Ludwig)
529 Gutenberg downloadsen2007Difficulty 57 (Graduate)
McClure's Magazine, Vol. 6, No. 5, April, 1896
Various
528 Gutenberg downloadsen2005Difficulty 51 (Graduate)
Memoir and Correspondence of Caroline Herschel
Herschel, John, Mrs.
528 Gutenberg downloadsen2016Difficulty 60 (Graduate)
Scientific American Supplement, No. 586, March 26, 1887
Various
527 Gutenberg downloadsen2004Difficulty 51 (Graduate)
Scientific American Supplement, No. 795, March 28, 1891
Various
527 Gutenberg downloadsen2004Difficulty 62 (Academic)
The Letter of Petrus Peregrinus on the Magnet, A.D. 1269
Pierre, de Maricourt, active 13th century
527 Gutenberg downloadsen2015Difficulty 62 (Academic)
Invention and Discovery: Curious Facts and Characteristic Sketches
Anonymous
526 Gutenberg downloadsen2014Difficulty 60 (Graduate)
Letters on Natural Magic; Addressed to Sir Walter Scott, Bart.
Brewster, David
524 Gutenberg downloadsen2016Difficulty 80 (Expert)
Practical Talks by an Astronomer
Jacoby, Harold
524 Gutenberg downloadsen2016Difficulty 56 (Graduate)
Pioneer Saturn Encounter
United States. National Aeronautics and Space Administration
523 Gutenberg downloadsen2017Difficulty 62 (Academic)
Scientific American Supplement, No. 483, April 4, 1885
Various
523 Gutenberg downloadsen2004Difficulty 55 (Graduate)
The Relations of Science and Religion The Morse Lecture, 1880
Calderwood, Henry
523 Gutenberg downloadsen2011Difficulty 72 (Expert)
Scientific American Supplement, No. 392, July 7, 1883
Various
522 Gutenberg downloadsen2005Difficulty 63 (Academic)
The Chautauquan, Vol. 04, November 1883 A Monthly Magazine Devoted to the Promotion of True Culture. Organ of the Chautauqua Literary and Scientific Circle.
Chautauqua Literary and Scientific Circle & Chautauqua Institution
522 Gutenberg downloadsen2016Difficulty 56 (Graduate)
Time and Tide: A Romance of the Moon
Ball, Robert S. (Robert Stawell)
522 Gutenberg downloadsen2008Difficulty 52 (Graduate)
Voyager 1 Encounters Saturn
United States. National Aeronautics and Space Administration
520 Gutenberg downloadsen2017Difficulty 62 (Academic)
Astronomical Discovery
Turner, H. H. (Herbert Hall)
516 Gutenberg downloadsen2010Difficulty 57 (Graduate)
The Miner's Friend; Or, An Engine to Raise Water by Fire
Savery, Thomas
516 Gutenberg downloadsen2014Difficulty 66 (Academic)
Daedalus : $b or, Science and the future
Haldane, J. B. S. (John Burdon Sanderson)
515 Gutenberg downloadsen2023Difficulty 58 (Graduate)
La Radiologie et La Guerre
Curie, Marie
515 Gutenberg downloadsfr2013
On-Line Data-Acquisition Systems in Nuclear Physics, 1969
National Research Council (U.S.). Ad Hoc Panel on On-line Computers in Nuclear Research
515 Gutenberg downloadsen2013Difficulty 64 (Academic)
Scientific American Supplement, No. 286, June 25, 1881
Various
513 Gutenberg downloadsen2005Difficulty 53 (Graduate)
A Historical Account of Useful Inventions and Scientific Discoveries Being a manual of instruction and entertainment.
Grant, George
511 Gutenberg downloadsen2016Difficulty 62 (Academic)
Spinning Tops The "Operatives' Lecture" of the British Association Meeting at Leeds, 6th September, 1890
Perry, John
511 Gutenberg downloadsen2010Difficulty 56 (Graduate)
Flowers of the Sky
Proctor, Richard A. (Richard Anthony)
507 Gutenberg downloadsen2017Difficulty 59 (Graduate)
Man's Place in the Universe A Study of the Results of Scientific Research in Relation to the Unity or Plurality of Worlds, 3rd Edition
Wallace, Alfred Russel
507 Gutenberg downloadsen2012Difficulty 71 (Expert)
Philosophy in Sport Made Science in Earnest Being an Attempt to Illustrate the First Principles of Natural Philosophy by the Aid of Popular Toys and Sports
Paris, John Ayrton
507 Gutenberg downloadsen2014Difficulty 69 (Academic)
Scientific American Supplement, No. 458, October 11, 1884
Various
507 Gutenberg downloadsen2004Difficulty 58 (Graduate)
Worlds Within Worlds: The Story of Nuclear Energy, Volume 2 (of 3) Mass and Energy; The Neutron; The Structure of the Nucleus
Asimov, Isaac
504 Gutenberg downloadsen2015Difficulty 58 (Graduate)
Central-Station Electric Lighting With Notes on the Methods Used for the Distribution of Electricity
Hedges, Killingworth
503 Gutenberg downloadsen2020Difficulty 62 (Academic)
Outlines of a mechanical theory of storms : $b containing the true law of lunar influence, with practical instructions to the navigator, to enable him approximately to calculate the coming changes of the wind and weather, for any given day, and for any part of the ocean
Bassnett, Thomas
503 Gutenberg downloadsen2006Difficulty 68 (Academic)
The universe around us
Jeans, James
503 Gutenberg downloadsen2025Difficulty 62 (Academic)
An epitome of electricity & galvanism
Green, Jacob & Hazard, Erskine
502 Gutenberg downloadsen2024Difficulty 67 (Academic)
Scientific American Supplement, No. 385, May 19, 1883
Various
501 Gutenberg downloadsen2005Difficulty 58 (Graduate)
Time and Its Measurement
Arthur, James
500 Gutenberg downloadsen2014Difficulty 50 (College)
L'A. B. C. de l'aviation: Biplans et monoplans
Gastine, Louis
499 Gutenberg downloadsfr2010
Scientific American Supplement, No. 315, January 14, 1882
Various
499 Gutenberg downloadsen2006Difficulty 63 (Academic)
Hertzian Wave Wireless Telegraphy
Fleming, J. A. (John Ambrose), Sir
498 Gutenberg downloadsen2012Difficulty 67 (Academic)
The Scientific Basis of National Progress, Including that of Morality
Gore, George
498 Gutenberg downloadsen2010Difficulty 70 (Academic)
Scientific Studies; or, Practical, in Contrast with Chimerical Pursuits
Dircks, Henry
497 Gutenberg downloadsen2013Difficulty 63 (Academic)
Heroes of Science: Physicists
Garnett, William
496 Gutenberg downloadsen2012Difficulty 61 (Academic)
Radioisotopes in Medicine
Phelan, Earl W.
496 Gutenberg downloadsen2015Difficulty 64 (Academic)
Satellite Communications Physics
Unknown
496 Gutenberg downloadsen2020Difficulty 65 (Academic)
Scientific American Supplement, No. 433, April 19, 1884
Various
496 Gutenberg downloadsen2005Difficulty 66 (Academic)
Cours de philosophie positive. (2/6)
Comte, Auguste
495 Gutenberg downloadsfr2010
Flying Machines Today
Ennis, William D. (William Duane)
495 Gutenberg downloadsen2016Difficulty 61 (Academic)
Rough Ways Made Smooth: A series of familiar essays on scientific subjects
Proctor, Richard A. (Richard Anthony)
495 Gutenberg downloadsen2017Difficulty 63 (Academic)
Scientific American Supplement No. 819, September 12, 1891
Various
495 Gutenberg downloadsen2005Difficulty 59 (Graduate)
Scientific American Supplement, No. 446, July 19, 1884
Various
495 Gutenberg downloadsen2004Difficulty 55 (Graduate)
The uses of astronomy : $b An oration delivered at Albany on the 28th of July, 1856
Everett, Edward
495 Gutenberg downloadsen2005Difficulty 60 (Graduate)
The Telephone An Account of the Phenomena of Electricity, Magnetism, and Sound, as Involved in Its Action
Dolbear, A. E. (Amos Emerson)
494 Gutenberg downloadsen2010Difficulty 60 (Graduate)
Friction, Lubrication and the Lubricants in Horology
Lewis, W. T. (William T.)
492 Gutenberg downloadsen2011Difficulty 55 (Graduate)
Scientific American Supplement, No. 470, January 3, 1885
Various
492 Gutenberg downloadsen2004Difficulty 52 (Graduate)
Scientific American Supplement, No. 829, November 21, 1891
Various
491 Gutenberg downloadsen2005Difficulty 63 (Academic)
The story of the sun, moon, and stars
Giberne, Agnes
491 Gutenberg downloadsen2025Difficulty 47 (College)
Roentgen Rays and Phenomena of the Anode and Cathode.
Thompson, Edward P. (Edward Pruden)
490 Gutenberg downloadsen2020Difficulty 59 (Graduate)
The Copernicus of Antiquity (Aristarchus of Samos)
Heath, Thomas Little, Sir
490 Gutenberg downloadsen2018Difficulty 59 (Graduate)
God and the World: A Survey of Thought
Robinson, Arthur William
489 Gutenberg downloadsen2009Difficulty 60 (Graduate)
The unseen universe : $b or, physical speculations on a future state
Stewart, Balfour & Tait, Peter Guthrie
489 Gutenberg downloadsen2025Difficulty 62 (Academic)
The Ways of the Planets
Martin, Martha Evans
489 Gutenberg downloadsen2016Difficulty 53 (Graduate)
Atoms, Nature, and Man: Man-made Radioactivity in the Environment
Hines, Neal O.
488 Gutenberg downloadsen2015Difficulty 68 (Academic)
Five of Maxwell's Papers
Maxwell, James Clerk
488 Gutenberg downloadsen2004Difficulty 63 (Academic)
Scientific American Supplement, No. 384, May 12, 1883
Various
488 Gutenberg downloadsen2005Difficulty 46 (College)
Elémens de la philosophie de Neuton: Mis à la portée de tout le monde
Voltaire
486 Gutenberg downloadsfr2015
Scientific American Supplement, No. 492, June 6, 1885
Various
486 Gutenberg downloadsen2004Difficulty 53 (Graduate)
Scientific American Supplement, No. 303, October 22, 1881
Various
485 Gutenberg downloadsen2005Difficulty 52 (Graduate)
The Story of Electricity
Munro, John
485 Gutenberg downloadsen2003Difficulty 57 (Graduate)
The Nuclear Ship Savannah First Atomic Merchant Ship, One of the World's Safest Ships
United States. Department of Commerce & United States. Maritime Administration & U.S. Atomic Energy Commission
484 Gutenberg downloadsen2020Difficulty 67 (Academic)
Scientific American Supplement, No. 601, July 9, 1887
Various
482 Gutenberg downloadsen2004Difficulty 53 (Graduate)
Comet Lore: Halley's Comet in History and Astronomy
Emerson, Edwin
481 Gutenberg downloadsen2021Difficulty 51 (Graduate)
Curiosities of Light and Sight
Bidwell, Shelford
481 Gutenberg downloadsen2012Difficulty 59 (Graduate)
The Autobiography of an Electron Wherein the Scientific Ideas of the Present Time Are Explained in an Interesting and Novel Fashion
Gibson, Charles R. (Charles Robert)
481 Gutenberg downloadsen2011Difficulty 50 (College)
The Popular Science Monthly, July, 1900 Vol. 57, May, 1900 to October, 1900
Various
480 Gutenberg downloadsen2014Difficulty 56 (Graduate)
Light Science for Leisure Hours A series of familiar essays on scientific subjects, natural phenomena, &c.
Proctor, Richard A. (Richard Anthony)
478 Gutenberg downloadsen2017Difficulty 60 (Graduate)
Icarus : $b or, The future of science
Russell, Bertrand
477 Gutenberg downloadsen2021Difficulty 61 (Academic)
Scientific American Supplement No. 822, October 3, 1891
Various
477 Gutenberg downloadsen2005Difficulty 55 (Graduate)
The Study of Elementary Electricity and Magnetism by Experiment Containing Two Hundred Experiments Performed with Simple, Home-made Apparatus
St. John, Thomas M. (Thomas Matthew)
477 Gutenberg downloadsen2015Difficulty 53 (Graduate)
Scientific American Supplement, No. 417, December 29, 1883
Various
476 Gutenberg downloadsen2005Difficulty 65 (Academic)
Encyclopaedia Britannica, 11th Edition, "Conduction, Electric" Volume 6, Slice 8
Various
475 Gutenberg downloadsen2010Difficulty 58 (Graduate)
The Atom and the Ocean
Hull, E. W. Seabrook
475 Gutenberg downloadsen2021Difficulty 61 (Academic)
Aeroplanes
Zerbe, James Slough
474 Gutenberg downloadsen1998Difficulty 46 (College)
Liquid Drops and Globules, Their Formation and Movements Three lectures delivered to popular audiences
Darling, Charles R. (Charles Robert)
473 Gutenberg downloadsen2011Difficulty 52 (Graduate)
An Account of the Late Improvements in Galvanism With a Series of Curious and Interesting Experiments Performed Before the Commissioners of the French National Institute, and Repeated Lately in the Anatomical Theatres of London
Aldini, Giovanni
470 Gutenberg downloadsen2018Difficulty 64 (Academic)
Scientific American Supplement, No. 275, April 9, 1881
Various
468 Gutenberg downloadsen2005Difficulty 57 (Graduate)
Army Pulse Radiation Facility
U.S. Army Ballistic Research Laboratory
466 Gutenberg downloadsen2022Difficulty 62 (Academic)
Scientific American Supplement, No. 455, September 20, 1884
Various
462 Gutenberg downloadsen2004Difficulty 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
462 Gutenberg downloadsen2012Difficulty 57 (Graduate)
Ancient and Modern Physics
Willson, Thomas Edgar
461 Gutenberg downloadsen2004Difficulty 53 (Graduate)
On Laboratory Arts
Threlfall, Richard
461 Gutenberg downloadsen2007Difficulty 54 (Graduate)
Scientific American Supplement, No. 363, December 16, 1882
Various
460 Gutenberg downloadsen2005Difficulty 62 (Academic)
Our Nuclear Future: Facts, Dangers and Opportunities
Teller, Edward & Latter, Albert L.
459 Gutenberg downloadsen2021Difficulty 53 (Graduate)
L'Académie des sciences et les académiciens de 1666 à 1793
Bertrand, Joseph
457 Gutenberg downloadsfr2016
On Molecular and Microscopic Science, Volume 1 (of 2)
Somerville, Mary
457 Gutenberg downloadsen2017Difficulty 61 (Academic)
Catechism of the locomotive
Forney, Matthias N. (Matthias Nace) & Kosak, Georg
456 Gutenberg downloadsen2025Difficulty 51 (Graduate)
Whole Body Counters
Woodburn, John H. & Lengemann, F. W. (Frederick W.)
456 Gutenberg downloadsen2015Difficulty 64 (Academic)
Scientific American Supplement, No. 717, September 28, 1889
Various
455 Gutenberg downloadsen2006Difficulty 53 (Graduate)
Leçons de cosmographie à l'usage des lycées et collèges et de tous les établissements d'instruction publique
Guilmin, A. (Adrien)
453 Gutenberg downloadsfr2007
Scientific American Supplement, No. 520, December 19, 1885
Various
452 Gutenberg downloadsen2004Difficulty 56 (Graduate)
Scientific American Supplement, No. 595, May 28, 1887
Various
450 Gutenberg downloadsen2004Difficulty 52 (Graduate)
Time and Clocks: A Description of Ancient and Modern Methods of Measuring Time
Cunynghame, Henry H. (Henry Hardinge), Sir
450 Gutenberg downloadsen2017Difficulty 48 (College)
The Science of the Stars
Maunder, E. Walter (Edward Walter)
449 Gutenberg downloadsen2015Difficulty 48 (College)
History of the Transformer
Uppenborn, Friedrich
448 Gutenberg downloadsen2018Difficulty 59 (Graduate)
Catholic Churchmen in Science [First Series] Sketches of the Lives of Catholic Ecclesiastics Who Were Among the Great Founders in Science
Walsh, James J. (James Joseph)
447 Gutenberg downloadsen2010Difficulty 67 (Academic)
Scientific American Supplement, No. 803, May 23, 1891
Various
445 Gutenberg downloadsen2004Difficulty 52 (Graduate)
The Natural Philosophy of William Gilbert and His Predecessors
King, W. James (William James)
445 Gutenberg downloadsen2010Difficulty 61 (Academic)
International Weekly Miscellany of Literature, Art and Science — Volume 1, No. 2, July 8, 1850
Various
443 Gutenberg downloadsen2004Difficulty 59 (Graduate)
Science Primers, Introductory
Huxley, Thomas Henry
443 Gutenberg downloadsen2019Difficulty 51 (Graduate)
Scientific American Supplement, No. 488, May 9, 1885
Various
443 Gutenberg downloadsen2008Difficulty 50 (College)
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
Hawkins, N. (Nehemiah)
442 Gutenberg downloadsen2011Difficulty 66 (Academic)
Scientific American Supplement, No. 530, February 27, 1886
Various
442 Gutenberg downloadsen2004Difficulty 58 (Graduate)
A Brief Account of Radio-activity
Venable, F. P. (Francis Preston)
441 Gutenberg downloadsen2010Difficulty 63 (Academic)
A Brief History of Element Discovery, Synthesis, and Analysis
Watson, Glen W.
441 Gutenberg downloadsen2010Difficulty 65 (Academic)
Careers in Atomic Energy
McIlhenny, Loyce J.
441 Gutenberg downloadsen2013Difficulty 68 (Academic)
Stars of the southern skies
Orr, M. A. (Mary Acworth)
441 Gutenberg downloadsen2023Difficulty 55 (Graduate)
Telescopic Work for Starlight Evenings
Denning, William F. (William Frederick)
441 Gutenberg downloadsen2018Difficulty 58 (Graduate)
Holcomb, Fitz, and Peate: Three 19th Century American Telescope Makers
Unknown
440 Gutenberg downloadsen2019Difficulty 58 (Graduate)
Experiments and Observations Relative to the Influence Lately Discovered by M. Galvani and Commonly Called Animal Electricity
Fowler, Richard
439 Gutenberg downloadsen2014Difficulty 64 (Academic)
The Earliest Electromagnetic Instruments
Chipman, Robert A.
439 Gutenberg downloadsen2010Difficulty 76 (Expert)
First Lessons in Natural Philosophy for Beginners
Martindale, Joseph C. (Joseph Comly)
438 Gutenberg downloadsen2016Difficulty 31 (High School)
La terre et la lune: forme extérieure et structure interne
Puiseux, P. (Pierre Henri)
438 Gutenberg downloadsfr2009
Principles of electricity
Shipley, Maynard
437 Gutenberg downloadsen2025Difficulty 58 (Graduate)
Scientific American Supplement, No. 787, January 31, 1891
Various
437 Gutenberg downloadsen2004Difficulty 53 (Graduate)
Airopaidia : $b Containing the narrative of a balloon excursion from Chester, the eighth of September, 1785, taken from minutes made during the voyage; hints on the improvement of balloons ... To which is subjoined, mensuration of heights by the barometer, made plain; with extensive tables. The whole serving as an introduction to aërial navigation.
Baldwin, Thomas
436 Gutenberg downloadsen2024Difficulty 50 (College)
Our Atomic World: The Story of Atomic Energy
Craven, C. Jackson (Claude Jackson)
436 Gutenberg downloadsen2021Difficulty 67 (Academic)
The conservation of energy
Stewart, Balfour
436 Gutenberg downloadsen2022Difficulty 57 (Graduate)
Facts and fancies in modern science Studies of the relations of science to prevalent speculations and religious belief
Dawson, John William, Sir
435 Gutenberg downloadsen2013Difficulty 62 (Academic)
Appletons' Popular Science Monthly, April 1900 Vol. 56, Nov. 1899 to April, 1900
Various
434 Gutenberg downloadsen2014Difficulty 60 (Graduate)
Appletons' Popular Science Monthly, May, 1900 Vol. 57, May, 1900 to October, 1900
Various
434 Gutenberg downloadsen2014Difficulty 60 (Graduate)
Die Naturwissenschaften in ihrer Entwicklung und in ihrem Zusammenhange, IV. Band Das Emporblühen der modernen Naturwissenschaften seit der Entdeckung des Energieprinzips
Dannemann, Friedrich
434 Gutenberg downloadsde2019
Stories of Starland
Proctor, Mary
434 Gutenberg downloadsen2017Difficulty 36 (High School)
Spectropia; or, Surprising Spectral Illusions Showing Ghosts Everywhere, and of Any Colour
Brown, J. H.
433 Gutenberg downloadsen2020Difficulty 50 (College)
The Molecular Tactics of a Crystal
Kelvin, William Thomson, Baron
432 Gutenberg downloadsen2017Difficulty 68 (Academic)
Where Science and Religion Meet
Palmer, William Scott
432 Gutenberg downloadsen2016Difficulty 51 (Graduate)
Eureka
Poe, Edgar Allan
430 Gutenberg downloadsfr2017
Lightning, Thunder and Lightning Conductors
Molloy, Gerald
430 Gutenberg downloadsen2022Difficulty 62 (Academic)
New and Original Theories of the Great Physical Forces
Rogers, Henry Raymond
430 Gutenberg downloadsen2008Difficulty 59 (Graduate)
Astronomical Instruments and Accessories
William Gaertner and Company
429 Gutenberg downloadsen2008Difficulty 51 (Graduate)
Galileo and His Judges
Wegg-Prosser, F. R. (Francis Richard)
429 Gutenberg downloadsen2020Difficulty 68 (Academic)
Lehrbuch der Physik zum Schulgebrauche.
Winter, Wilhelm
429 Gutenberg downloadsde2017
The Veil Lifted: Modern Developments of Spirit Photography
Unknown
428 Gutenberg downloadsen2019Difficulty 57 (Graduate)
Scientific American Supplement, No. 467, December 13, 1884
Various
427 Gutenberg downloadsen2014Difficulty 51 (Graduate)
Scientific American Supplement, No. 648, June 2, 1888.
Various
427 Gutenberg downloadsen2011Difficulty 54 (Graduate)
A Preliminary Dissertation on the Mechanisms of the Heavens
Somerville, Mary
426 Gutenberg downloadsen2022Difficulty 79 (Expert)
Stars and atoms
Eddington, Arthur Stanley, Sir
426 Gutenberg downloadsen2024Difficulty 54 (Graduate)
The Relations Between Religion and Science Eight Lectures Preached Before the University of Oxford in the Year 1884
Temple, Frederick
426 Gutenberg downloadsen2005Difficulty 52 (Graduate)
Artificial and Natural Flight
Maxim, Hiram S. (Hiram Stevens)
425 Gutenberg downloadsen2014Difficulty 53 (Graduate)
On a Dynamical Top, for exhibiting the phenomena of the motion of a system of invariable form about a fixed point, with some suggestions as to the Earth's motion
Maxwell, James Clerk
425 Gutenberg downloadsen2004Difficulty 61 (Academic)
Chambers's Journal of Popular Literature, Science, and Art, Fifth Series, No. 40, Vol. I, October 4, 1884
Various
424 Gutenberg downloadsen2021Difficulty 52 (Graduate)
Scientific American Supplement, No. 388, June 9, 1883
Various
423 Gutenberg downloadsen2005Difficulty 56 (Graduate)
Joseph Smith as Scientist: A Contribution to Mormon Philosophy
Widtsoe, John Andreas
422 Gutenberg downloadsen2010Difficulty 57 (Graduate)
Gunshot Roentgenograms A Collection of Roentgenograms Taken in Constantinople During the Turko-Balkan War, 1912-1913, Illustrating Some Gunshot Wounds in the Turkish Army
Ford, Clyde S. (Clyde Sinclair)
420 Gutenberg downloadsen2015Difficulty 53 (Graduate)
Colour Measurement and Mixture
Abney, William de Wiveleslie, Sir
419 Gutenberg downloadsen2012Difficulty 55 (Graduate)
Die Luftschiffahrt der Gegenwart
Hoernes, Hermann
419 Gutenberg downloadsde2013
The stereoscope : $b its history, theory, and construction, with its application to the fine and useful arts and to education
Brewster, David
419 Gutenberg downloadsen2023Difficulty 59 (Graduate)
Little Masterpieces of Science: Invention and Discovery
Unknown
417 Gutenberg downloadsen2009Difficulty 60 (Graduate)
The Evolution of Worlds
Lowell, Percival
417 Gutenberg downloadsen2020Difficulty 55 (Graduate)
Voyager Encounters Jupiter
United States. National Aeronautics and Space Administration
417 Gutenberg downloadsen2017Difficulty 64 (Academic)
The Trouvelot astronomical drawings manual
Trouvelot, E. L. (Etienne Leopold)
416 Gutenberg downloadsen2022Difficulty 61 (Academic)
夢溪筆談, Volume 07-10
Shen, Kuo
416 Gutenberg downloadszh2005
Atoms in Agriculture: Applications of Nuclear Science to Agriculture (Revised)
Osborne, Thomas S.
414 Gutenberg downloadsen2015Difficulty 58 (Graduate)
How to become a scientist : $b Giving interesting and instructive experiments in chemistry, mechanics, acoustics and pyrotechnics
Warford, Aaron A.
413 Gutenberg downloadsen2023Difficulty 54 (Graduate)
Die Welträtsel: Gemeinverständliche Studien über Monistische Philosophie
Haeckel, Ernst
412 Gutenberg downloadsde2019
Extra-galactic nebulae
Hubble, Edwin
411 Gutenberg downloadsen2022Difficulty 56 (Graduate)
Scientific American Supplement, No. 441, June 14, 1884.
Various
411 Gutenberg downloadsen2005Difficulty 56 (Graduate)
Electricity for the 4-H Scientist
Wilson, Eric B.
410 Gutenberg downloadsen2011Difficulty 44 (College)
Science and Medieval Thought The Harveian Oration Delivered Before the Royal College of Physicians, October 18, 1900
Allbutt, T. Clifford (Thomas Clifford)
410 Gutenberg downloadsen2012Difficulty 66 (Academic)
Leibniz: Zu seinem zweihunderjährigen Todestag 14. November 1916
Wundt, Wilhelm Max
409 Gutenberg downloadsde2019
The Mirror of Literature, Amusement, and Instruction. Volume 12, No. 336, October 18, 1828
Various
409 Gutenberg downloadsen2004Difficulty 57 (Graduate)
Le Système Solaire se mouvant
Tischner, August
408 Gutenberg downloadsfr2010
The description and use of the globes and the orrery To which is prefix'd, by way of introduction, a brief account of the solar system
Harris, Joseph
408 Gutenberg downloadsen2020Difficulty 54 (Graduate)
The Second Boys' Book of Model Aeroplanes
Collins, Francis A. (Francis Arnold)
408 Gutenberg downloadsen2020Difficulty 50 (College)
Thomas Hariot, the Mathematician, the Philosopher and the Scholar
Stevens, Henry
407 Gutenberg downloadsen2004Difficulty 63 (Academic)
The Problem of Manflight
Means, James
405 Gutenberg downloadsen2017Difficulty 55 (Graduate)
Naturgeschichte einer Kerze : $b Sechs Vorlesungen für die Jugend; Mit einem Lebensabriß Faraday's
Faraday, Michael
403 Gutenberg downloadsde2023
Der Vogelflug als Grundlage der Fliegekunst Ein Beitrag zur Systematik der Flugtechnik
Lilienthal, Otto
402 Gutenberg downloadsde2017
The Popular Science Monthly, August, 1900 Vol. 57, May, 1900 to October, 1900
Various
402 Gutenberg downloadsen2014Difficulty 68 (Academic)
Atoms at the Science Fair: Exhibiting Nuclear Projects
LeCompte, Robert G. & Wood, Burrell L.
401 Gutenberg downloadsen2021Difficulty 62 (Academic)
The Children's Book of Stars
Mitton, G. E. (Geraldine Edith)
401 Gutenberg downloadsen2009Difficulty 50 (College)
History of the Harvard College Observatory During the Period 1840-1890
Baker, Daniel W.
400 Gutenberg downloadsen2019Difficulty 57 (Graduate)
On the Construction of a Silvered Glass Telescope Fifteen and a half inches in aperture, and its use in celestial photography
Draper, Henry
398 Gutenberg downloadsen2016Difficulty 61 (Academic)
Benjamin Franklin and the First Balloons
Franklin, Benjamin
397 Gutenberg downloadsen2013Difficulty 51 (Graduate)
Scientific American Supplement, No. 430, March 29, 1884
Various
397 Gutenberg downloadsen2005Difficulty 59 (Graduate)
Stellar Evolution and Its Relations to Geological Time
Croll, James
397 Gutenberg downloadsen2015Difficulty 60 (Graduate)
Short-Title Catalog of Publications and Importations of Scientific and Engineering Books (August 1910)
D. Van Nostrand Company
396 Gutenberg downloadsen2017Difficulty 43 (College)
Watchers of the Sky
Noyes, Alfred
395 Gutenberg downloadsen2004Difficulty 45 (College)
The Machinery of the Universe: Mechanical Conceptions of Physical Phenomena
Dolbear, A. E. (Amos Emerson)
393 Gutenberg downloadsen2009Difficulty 70 (Academic)
The New Heavens
Hale, George Ellery
393 Gutenberg downloadsen2006Difficulty 63 (Academic)
Observations on the Automaton Chess Player Now Exhibited in London, at 4 Spring Gardens
Oxford graduate
392 Gutenberg downloadsen2019Difficulty 66 (Academic)
Wireless Possibilities
Low, A. M. (Archibald Montgomery)
392 Gutenberg downloadsen2021Difficulty 58 (Graduate)
Blackwood's Edinburgh Magazine, Vol. 76, No. 468, October, 1854
Various
391 Gutenberg downloadsen2025Difficulty 69 (Academic)
Einstein et l'univers: Une lueur dans le mystère des choses
Nordmann, Charles
391 Gutenberg downloadsfr2013
Light and Colour Theories, and their relation to light and colour standardization
Lovibond, Joseph W. (Joseph Williams)
391 Gutenberg downloadsen2018Difficulty 58 (Graduate)
The telephone : $b a lecture entitled Researches in electric telephony
Bell, Alexander Graham
391 Gutenberg downloadsen2017Difficulty 67 (Academic)
The Energy System of Matter: A Deduction from Terrestrial Energy Phenomena
Weir, James, active 1883-1912
390 Gutenberg downloadsen2011Difficulty 67 (Academic)
The Future of Astronomy
Pickering, Edward C. (Edward Charles)
389 Gutenberg downloadsen2005Difficulty 57 (Graduate)
Atom Mystery [Young Atom Detective]
Coombs, Charles Ira
387 Gutenberg downloadsen2016Difficulty 36 (High School)
The Warfare of Science
White, Andrew Dickson
387 Gutenberg downloadsen2015Difficulty 55 (Graduate)
A discourse on the theory of gunnery Delivered at the anniversary meeting of the Royal Society, November 30, 1778
Pringle, John, Sir
383 Gutenberg downloadsen2022Difficulty 76 (Expert)
Chambers's Journal of Popular Literature, Science, and Art, No. 726 November 24, 1877
Various
382 Gutenberg downloadsen2016Difficulty 51 (Graduate)
Lecture on Artificial Flight Given by request at the Academy of Natural Sciences
Krueger, William G.
382 Gutenberg downloadsen2011Difficulty 66 (Academic)
Dissertation sur la nature et la propagation du feu
Du Châtelet, Gabrielle Emilie Le Tonnelier de Breteuil, marquise
379 Gutenberg downloadsfr2024
How to become an inventor : $b Containing experiments in photography, hydraulics, galvanism and electricity, magnetism, heat, and the wonders of the microscope
Warford, Aaron A.
379 Gutenberg downloadsen2024Difficulty 49 (College)
X-ray, violet ray, and other rays : $b With their use in modern medicine
Shipley, Maynard
379 Gutenberg downloadsen2025Difficulty 58 (Graduate)
The Atomic Fingerprint: Neutron Activation Analysis
Keisch, Bernard
378 Gutenberg downloadsen2015Difficulty 59 (Graduate)
The proceedings of the Canadian Eclipse Party, 1869
Ashe, E. D. (Edward David)
378 Gutenberg downloadsen2011Difficulty 48 (College)
Die Naturwissenschaften in ihrer Entwicklung und in ihrem Zusammenhange, I. Band Von den Anfängen bis zum Wiederaufleben der Wissenschaften
Dannemann, Friedrich
377 Gutenberg downloadsde2016
Scientific American Supplement, No. 421, January 26, 1884
Various
377 Gutenberg downloadsen2005Difficulty 56 (Graduate)
Marvels of Modern Science
Severing, Paul
376 Gutenberg downloadsen2004Difficulty 51 (Graduate)
Ephemerides Barometricae Mutinenses (anni M.DC.XCIV) Cum Disquisitione Causae ascensus ac descensus Mercurii in Torricelliana fistula iuxta diversum Aeris statum
Ramazzini, Bernardino & Boccabadati, Giovan Battista & Torti, Francesco
375 Gutenberg downloadsla2016
Curiosities of Heat
Tefft, Lyman Beecher
374 Gutenberg downloadsen2012Difficulty 45 (College)
Photographic investigations of faint nebulae
Hubble, Edwin
373 Gutenberg downloadsen2023Difficulty 53 (Graduate)
Natuurkunde in de Huiskamer: ongeveer 100 proeven met huishoudelijke voorwerpen.
Tit, Tom
372 Gutenberg downloadsnl2016
The natural and artificial disintegration of the elements An address by Professor Sir Ernest Rutherford
Rutherford, Ernest
371 Gutenberg downloadsen2022Difficulty 67 (Academic)
The Study of Astronomy, adapted to the capacities of youth In twelve familiar dialogues, between a tutor and his pupil: explaining the general phænomena of the heavenly bodies, the theory of the tides, &c.
Stedman, John, teacher of astronomy
371 Gutenberg downloadsen2018Difficulty 44 (College)
Out of Russia
Marriott, Crittenden
369 Gutenberg downloadsen2023Difficulty 36 (High School)
The hell bomb
Laurence, William L. (William Leonard)
368 Gutenberg downloadsen2025Difficulty 58 (Graduate)
The Microscope
Ross, Andrew
368 Gutenberg downloadsen2013Difficulty 65 (Academic)
A Course of Mechanical, Magnetical, Optical, Hydrostatical and Pneumatical Experiments perform'd by Francis Hauksbee, and the Explanatory Lectures read by William Whiston, M.A.
Whiston, William & Hauksbee, Francis
367 Gutenberg downloadsen2013Difficulty 56 (Graduate)
The romance of comets
Proctor, Mary
366 Gutenberg downloadsen2025Difficulty 59 (Graduate)
The theory of relativity and its influence on scientific thought
Eddington, Arthur Stanley, Sir
365 Gutenberg downloadsen2023Difficulty 63 (Academic)
Remarks upon the solar and the lunar years, the cycle of 19 years, commonly called the golden number, the epact, and a method of finding the time of Easter, as it is now observed in most parts of Europe
Macclesfield, George Parker, Earl of
364 Gutenberg downloadsen2020Difficulty 61 (Academic)
Experiments and Observations Tending to Illustrate the Nature and Properties of Electricity In One Letter to Martin Folkes, Esq; President, and Two to the Royal Society
Watson, William, Sir
363 Gutenberg downloadsen2014Difficulty 64 (Academic)
Archimedes; or, the future of physics
Whyte, Lancelot Law
362 Gutenberg downloadsen2025Difficulty 66 (Academic)
Nuclear Clocks Revised
Faul, Henry
362 Gutenberg downloadsen2015Difficulty 59 (Graduate)
Tratado das Cores Que consta de tres partes: analytica, synthetica, hermeneutica
Sampaio, Diogo de Carvalho e
362 Gutenberg downloadspt2010
American Horological Journal, Vol. I, No. 1, July 1869: Devoted to Pratical Horology
Unknown
360 Gutenberg downloadsen2022Difficulty 60 (Graduate)
Experimental glass blowing for boys
Lynde, Carleton John
359 Gutenberg downloadsen2024Difficulty 39 (High School)
A new discovery for finding the longitude
Hobbs, William
358 Gutenberg downloadsen2025Difficulty 48 (College)
The Sun changes its position in space therefore it cannot be regarded as being "in a condition of rest"
Tischner, August
358 Gutenberg downloadsen2012Difficulty 62 (Academic)
Books Relating to Applied Science, Published by E. & F. N. Spon, 1890.
E. & F. N. Spon
357 Gutenberg downloadsen2021Difficulty 62 (Academic)
The evolution of worlds from nebulae
Dean, Lee Parker
356 Gutenberg downloadsen2023Difficulty 56 (Graduate)
William Gilbert, and Terrestial Magnetism in the Time of Queen Elizabeth A Discourse
Thompson, Silvanus P. (Silvanus Phillips)
355 Gutenberg downloadsen2014Difficulty 63 (Academic)
Collezione dell'opere del Cavaliere Conte Alessandro Volta - Tomo I, Parte I
Volta, Alessandro
354 Gutenberg downloadsit2019
Physical Amusements and Diverting Experiments Composed and Performed in Different Capitals of Europe, and in London
Pinetti, Giuseppe
354 Gutenberg downloadsen2018Difficulty 56 (Graduate)
The Mirror of Literature, Amusement, and Instruction. Volume 14, No. 404, December 12, 1829
Various
354 Gutenberg downloadsen2004Difficulty 54 (Graduate)
Radiation
Phillips, Percy
353 Gutenberg downloadsen2015Difficulty 55 (Graduate)
Le Téléphone, le Microphone et le Phonographe
Du Moncel, Th., comte
352 Gutenberg downloadsfr2008
A Project for Flying: In Earnest at Last!
Hardley, Robert
351 Gutenberg downloadsen2004Difficulty 66 (Academic)
Clerk Maxwell's electromagnetic theory
Lorentz, H. A. (Hendrik Antoon)
351 Gutenberg downloadsen2023Difficulty 69 (Academic)
The wonders of radium
Shipley, Maynard
351 Gutenberg downloadsen2025Difficulty 60 (Graduate)
A Treatise on Electricity Wherein its various phænomena are accounted for, and the cause of the attraction and gravitation of solids, assigned. To which is added, a short account, how the electrical effluvia act upon the animal frame, and in what disorders the same may probably be applied with success, and in what not.
Penrose, Francis
350 Gutenberg downloadsen2019Difficulty 68 (Academic)
Standard Measures of United States, Great Britain and France History and actual comparisons. With appendix on introduction of the mètre
Wurtele, Arthur S. C.
350 Gutenberg downloadsen2017Difficulty 56 (Graduate)
On the distribution of intensity in stellar absorption lines
Payne-Gaposchkin, Cecilia & Shapley, Harlow
349 Gutenberg downloadsen2025Difficulty 57 (Graduate)
The Mysterious Box: Nuclear Science and Art
Keisch, Bernard
349 Gutenberg downloadsen2021Difficulty 48 (College)
Aus Natur und Geisteswelt Sammlung wissenschaftlich-gemeinverständlicher Darstellungen aus allen Gebieten des Wissens
B.G. Teubner (Firm)
348 Gutenberg downloadsde2016
An epitome of astronomy, with the new discoveries including an account of the eídouraníon, or transparent orrery
Walker, William
347 Gutenberg downloadsen2020Difficulty 65 (Academic)
Modern cosmogonies
Clerke, Agnes M. (Agnes Mary)
347 Gutenberg downloadsen2021Difficulty 64 (Academic)
The highest aim of the physicist
Rowland, Henry Augustus
347 Gutenberg downloadsen2023Difficulty 55 (Graduate)
Das lebende Lichtbild: Entwicklung, Wesen und Bedeutung des Kinematographen
Liesegang, Franz Paul
346 Gutenberg downloadsde2017
Sonne und Sterne
Meyer, M. W. (Max Wilhelm)
346 Gutenberg downloadsde2021
Die Naturwissenschaften in ihrer Entwicklung und in ihrem Zusammenhange, III. Band Das Emporblühen der modernen Naturwissenschaften bis zur Entdeckung des Energieprinzipes
Dannemann, Friedrich
345 Gutenberg downloadsde2018
Warum und Weil. Physikalischer Teil. Fragen und Antworten aus den wichtigsten Gebieten der gesammten Naturlehre.
Ule, Otto
345 Gutenberg downloadsde2020
War in Heaven
Pratt, Fletcher
344 Gutenberg downloadsen2023Difficulty 53 (Graduate)
Aspects of science
Sullivan, J. W. N. (John William Navin)
343 Gutenberg downloadsen2025Difficulty 62 (Academic)
A világegyetem élete és megismerésének története a legrégibb időtől napjainkig
Arrhenius, Svante
342 Gutenberg downloadshu2022
De Wonderbouw der Wereld : $b De Grondslagen van Ons Sterrekundig Wereldbeeld Populair Uiteengezet
Pannekoek, Anton
342 Gutenberg downloadsnl2019
The Story of a Tinder-box
Tidy, Charles Meymott
342 Gutenberg downloadsen2009Difficulty 48 (College)
Relativitätstheorie und Erkenntnis Apriori
Reichenbach, Hans
341 Gutenberg downloadsde2018
Address delivered before the British Association assembled at Belfast
Tyndall, John
338 Gutenberg downloadsen2025Difficulty 62 (Academic)
Discorso sopra la calamita
Castelli, Benedetto
336 Gutenberg downloadsit2015
The peaceful atom
Hunt, Bernice Kohn
333 Gutenberg downloadsen2023Difficulty 42 (College)
Die Welt der Planeten
Meyer, M. W. (Max Wilhelm)
332 Gutenberg downloadsde2018
Remarks on a Pamphlet Lately published by the Rev. Mr. Maskelyne, Under the Authority of the Board of Longitude
Harrison, John
332 Gutenberg downloadsen2011Difficulty 77 (Expert)
The origin and development of the atomic theory
Shipley, Maynard
331 Gutenberg downloadsen2025Difficulty 65 (Academic)
Teste quadre
Panzacchi, Enrico
330 Gutenberg downloadsit2015
Expériences et observations sur l'électricité faites à Philadelphie en Amérique
Franklin, Benjamin
329 Gutenberg downloadsfr2008
Remarks of the President in Presenting to Madam Curie a Gift of Radium from the American People
Harding, Warren G. (Warren Gamaliel)
327 Gutenberg downloadsen2019Difficulty 60 (Graduate)
Chambers's Journal of Popular Literature, Science, and Art, fifth series, no. 126, vol. III, May 29, 1886
Various
324 Gutenberg downloadsen2023Difficulty 54 (Graduate)
An Essay to Shew the Cause of Electricity; and Why Some Things are Non-Electricable. In Which Is Also Consider'd Its Influence in the Blasts on Human Bodies, in the Blights on Trees, in the Damps in Mines; And as It May Affect the Sensitive Plant, &c.
Freke, John
322 Gutenberg downloadsen2016Difficulty 64 (Academic)
The Great Round World and What Is Going On In It, Vol. 1, No. 60, December 30, 1897 A Weekly Magazine for Boys and Girls
Various
318 Gutenberg downloadsen2005Difficulty 51 (Graduate)
Astronomy for Young Australians
Bonwick, James
317 Gutenberg downloadsen2018Difficulty 33 (High School)
Beitrag zur Beurteilung der Lehren Machs : $b Inaugural-Dissertation zur Erlangung der Doktorwürde
Musil, Robert
317 Gutenberg downloadsde2014
Die Milchstraße
Kahn, Fritz
315 Gutenberg downloadsde2016
Ueber die schrecklichen Wirkungen des Aufsturzes eines Kometen auf die Erde und über die vor fünftausend Jahren gehabte Erscheinung dieser Art
Gelpke, August Heinrich Christian
315 Gutenberg downloadsde2006
La maniere d'amolir les os, et de faire cuire toutes sortes de viandes en fort peu de temps, & à peu de frais.
Papin, Denis
314 Gutenberg downloadsfr2016
Verklaring van het stoomwerktuig zijnde eene algemeen bevattelijke beschrijving van deszelfs onderscheidene deelen, zamenstelling en werking.
Unknown
314 Gutenberg downloadsnl2010
Feltalálók, felfedezők, nagy emberek
Ostwald, Wilhelm
313 Gutenberg downloadshu2025
Beschrijving van het Rijks-Planetarium te Franeker Van 1772 tot 1780 uitgedacht en vervaardigd door Eise Eisinga
Swinden, Jan Hendrik van & Eekhoff, W. (Wopke)
312 Gutenberg downloadsnl2020
A Plan for Securing Observations of the Variable Stars
Pickering, Edward C. (Edward Charles)
311 Gutenberg downloadsen2011Difficulty 56 (Graduate)
Arago et sa vie scientifique
Bertrand, Joseph
309 Gutenberg downloadsfr2008
Sciências Naturaes Pela Redacção da «Educação Nacional»
Anonymous
309 Gutenberg downloadspt2006
De martelaars der wetenschap
Tissandier, Gaston
307 Gutenberg downloadsnl2018
Popular lessons in astronomy, on a new plan : $b in which some of the leading principles of the science are illustrated by actual comparisions, independent of the use of numbers
Grund, Francis J. (Francis Joseph)
306 Gutenberg downloadsen2023Difficulty 46 (College)
The chemical nature of the alpha particles from radioactive substances
Rutherford, Ernest
305 Gutenberg downloadsen2023Difficulty 65 (Academic)
Vasárnapi Könyv. 1914. Első félév 17. füzet
Anonymous
305 Gutenberg downloadshu2010
The Dominion Astrophysical Observatory, Victoria, B.C.
Plaskett, J. S. (John Stanley)
302 Gutenberg downloadsen2020Difficulty 62 (Academic)
A természettudomány fejlődésének története (2. kötet)
Bölsche, Wilhelm
300 Gutenberg downloadshu2022
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Feijoo, Benito Jerónimo
300 Gutenberg downloadsen2025Difficulty 72 (Expert)
Von Sonnen und Sonnenstäubchen : $b Kosmische Wanderungen
Bölsche, Wilhelm
296 Gutenberg downloadsde2025
Was mir das Sternenlicht erzählt: Eine populäre Himmelskunde für die Jugend
Erber, Felix
296 Gutenberg downloadsde2018
Meinauer Naturlehre
Unknown
295 Gutenberg downloadsde2009
Scientific American magazine, Vol. 2 Issue 1 The advocate of Industry and Journal of Scientific, Mechanical and Other Improvements
Various
293 Gutenberg downloadsen2009Difficulty 52 (Graduate)
Jorden och solsystemet : $b Några blad ur historien om vetenskapens strider
Bohlin, Karl
286 Gutenberg downloadssv2016
Het Nut der Mechanistische Methode in de Geneeskunde
Boerhaave, Herman
285 Gutenberg downloadsnl2005
La naissance et l'évanouissement de la matière
Le Bon, Gustave
279 Gutenberg downloadsfr2022
The new science of space speech
Gaddis, Vincent H. (Vincent Hayes)
277 Gutenberg downloadsen2025Difficulty 56 (Graduate)
Yleinen Maatiede : $b Luonnollinen Maatide ynnä Venäjän valtakunta, Euroopassa olevine alusmaineen, valtiollisesti
Corander, Klas
270 Gutenberg downloadsfi2025
De Usu Ratiocinii Mechanici in Medicina
Boerhaave, Herman
257 Gutenberg downloadsla2005
Einiges aus der Geschichte der Astronomie im Alterthum Rede zur Feier des Geburtstags Sr. Maj. des Deutschen Kaisers Königs von Preussen Wilhelm I. gehalten an der Christian-Albrechts
Blass, Friedrich
254 Gutenberg downloadsde2012
Über die Vulkane im Monde
Kant, Immanuel
241 Gutenberg downloadsde2012
Geometrical Solutions Derived from Mechanics; a Treatise of Archimedes
Archimedes
172 Gutenberg downloadsen2005Difficulty 67 (Academic)

The Notebooks of Leonardo Da Vinci — Complete

Steam, Its Generation and Use

The Story of the Heavens

A Budget of Paradoxes, Volume I

The Astronomy of Milton's 'Paradise Lost'

Astronomy for Amateurs

The Martyrs of Science, or, The lives of Galileo, Tycho Brahe, and Kepler

Myths and Marvels of Astronomy

German Science Reader An Introduction to Scientific German, for Students of Physics, Chemistry and Engineering

A Color Notation A measured color system, based on the three qualities Hue, Value and Chroma

Opticks : $b or, A treatise of the reflections, refractions, inflections and colours of light

Goethe's Theory of Colours

Philosophiae Naturalis Principia Mathematica

Rollo's Experiments

Novum organum : $b or, True suggestions for the interpretation of nature

Encyclopaedia Britannica, 11th Edition, "Electrostatics" to "Engis" Volume 9, Slice 3

On Growth and Form

Scientific American, Volume 56, No. 9, February 26, 1887

The Astronomy of the Bible An Elementary Commentary on the Astronomical References of Holy Scripture

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...

Radio-Activity

Relativity: The Special and General Theory

The reason why : $b a careful collection of many hundreds of reasons for things which, though generally believed, are imperfectly understood. A book of condensed scientific knowledge for the million

How to Use the Popular Science Library; History of Science; General Index

The Foundations of Science: Science and Hypothesis, The Value of Science, Science and Method

Discoveries and Inventions of the Nineteenth Century

Experiments with Alternate Currents of High Potential and High Frequency A Lecture Delivered before the Institution of Electrical Engineers, London

Bibliographical history of electricity & magnetism, chronologically arranged

Encyclopaedia Britannica, 11th Edition, "Magnetite" to "Malt" Volume 17, Slice 4

Tube, Train, Tram, and Car; or, Up-to-date locomotion

Index of the Project Gutenberg Works of Benjamin Franklin

Experimental Researches in Electricity, Volume 1

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

On the magnet, magnetick bodies also, and on the great magnet the earth a new physiology, demonstrated by many arguments & experiments

Pierre Curie

Physics

The Boy Electrician

The Concept of Nature The Tarner Lectures Delivered in Trinity College, November 1919

Encyclopaedia Britannica, 11th Edition, "Liquid Gases" to "Logar" Volume 16, Slice 7

The principles of science : $b a treatise on logic and scientific method

Cosmos: A Sketch of the Physical Description of the Universe, Vol. 1

History of the Conflict Between Religion and Science

Encyclopaedia Britannica, 11th Edition, "Hydromechanics" to "Ichnography" Volume 14, Slice 2

Einstein's Theories of Relativity and Gravitation A selection of material from the essays submitted in the competition for the Eugene Higgins prize of $5,000

The sidereal messenger of Galileo Galilei : $b and a part of the preface to Kepler's Dioptrics containing the original account of Galileo's astronomical discoveries

Michael Faraday, His Life and Work

Popular Scientific Recreations in Natural Philosphy, Astronomy, Geology, Chemistry, etc., etc., etc.

Encyclopaedia Britannica, 11th Edition, "Matter" to "Mecklenburg" Volume 17, Slice 8

The Outline of Science, Vol. 1 (of 4) A Plain Story Simply Told

American Journal of Science, Vol. 1.

Treatise on light : $b In which are explained the causes of that which occurs in reflexion, & in refraction and particularly in the strange refraction of Iceland crystal

History of the inductive sciences, from the earliest to the present time

A century of science in America : $b with special reference to the American Journal of Science, 1818-1918

The Story of Great Inventions

A Popular History of Astronomy During the Nineteenth Century Fourth Edition

Zetetic astronomy: Earth not a globe! An experimental inquiry into the true figure of the earth etc.

Harper's Electricity Book for Boys

The Principle of Relativity

Giant brains; or, Machines that think

The Quarterly Journal of Science, Literature and the Arts, July-December, 1827

Reflections on the Decline of Science in England, and on Some of Its Causes

The Boy's Book of New Inventions

Wonderful Balloon Ascents; Or, The Conquest of the Skies A History of Balloons and Balloon Voyages

The First Airplane Diesel Engine: Packard Model DR-980 of 1928

Fragments of Science: A Series of Detached Essays, Addresses, and Reviews. V. 1-2

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

Studies in the History and Method of Science, vol. 1 (of 2)

Woman in Science With an Introductory Chapter on Woman's Long Struggle for Things of the Mind

James Clerk Maxwell and Modern Physics

Pyrometry: A Practical Treatise on the Measurement of High Temperatures

Mysterious Psychic Forces An Account of the Author's Investigations in Psychical Research, Together with Those of Other European Savants

The Boy's Playbook of Science Including the Various Manipulations and Arrangements of Chemical and Philosophical Apparatus Required for the Successful Performance of Scientific Experiments in Illustration of the Elementary Branches of Chemistry and Natural Philosophy

The Poetry of Science; or, Studies of the Physical Phenomena of Nature

The Complete Works in Philosophy, Politics and Morals of the late Dr. Benjamin Franklin, Vol. 2 [of 3]

Galileo Galilei and the Roman Curia From Authentic Sources

Valerius Terminus: Of the Interpretation of Nature

Perpetual Motion

Letters on Astronomy in which the Elements of the Science are Familiarly Explained in Connection with Biographical Sketches of the Most Eminent Astronomers

Astronomical Curiosities: Facts and Fallacies

The Universe a Vast Electric Organism