IF YOU WANT TO READ MORE ABOUT THE EINSTEIN THEORIES

• For the non-mathematical reader:
• ABBOTT, EDWIN.
• Flatland, by A Square. Boston, 1891.
• An amusing way of leading up to the fourth dimension.
• CAMPBELL, NORMAN.
• The Commonsense of Relativity. Philosophical Magazine,
• April, 1911.
• CARR, WILDON.
• The Metaphysical Implications of the Theory of Relativity.
• Philosophical Review, Jan., 1915.
• CARUS, PAUL.
• The Principle of Relativity. Chicago: Open Court Publishing
• Co., 1913.
• COMSTOCK, D. F.
• The Principle of Relativity. Science, May 20, 1910,
• vol. 31, p. 767.
• CUNNINGHAM, E.
• Einstein’s Relativity Theory of Gravitation. Nature,
• Dec. 4, 11, and 18, 1919.
• An interesting non-mathematical discussion of the latest
• phases of the theory.
• EDDINGTON, A. S.
• Einstein’s Theory of Space and Time. Contemporary
• Review, Dec, 1919.
• Good popular article.
• EDDINGTON, A. S.
• Gravitation. Scientific American Supplement, July 6 and
• 13, 1918.
• An excellent popular explanation by the leading British
• disciple of Einstein.
• EINSTEIN, A.
• Time, Space, and Gravitation. Science, Garrison, 1920,
• Jan. 3, n.s., vol. 51, p. 8-10.
• My Theory. Living Age. Boston, 1920, vol. 304, p. 41-3,
• Jan. 3.
• FLAMMARION, CAMILLE.
• Lumen. New York: Dodd, Mead and Co., 1897.
• Contains nothing about Einstein but presents the relativity
• of time in fantastic form.
• KEYSER, C. J.
• Concerning the Figure and the Dimensions of the Universe
• of Space. Science, June 13, 1913.
• LODGE, SIR OLIVER.
• The New Theory of Gravity. Nineteenth Century, Dec.,
• 1919.
• The Ether versus Relativity. Fortnightly Review, Jan.,
• 1920.
• Admirable article by a courteous opponent.
• POINCARÉ, HENRI.
• Science and Method; also contained in The Foundations
• of Science. New York: The Science Press, 1913.
• RUSSELL, BERTRAND.
• The Relativity Theory of Gravitation. English Review,
• Dec., 1919.
• A clear explanation by one of the foremost of British
• philosophers.
• THOMSON, J.
• Deflection of Light by Gravitation and the Einstein
• Theory of Relativity. Scientific Monthly, Garrison, N. Y.,
• 1920, vol. 10, p. 79-85, Jan.
• VARIOUS WRITERS.
• The Fourth Dimension Simply Explained. New York:
• Munn and Co., 1910.
• The essays submitted for a prize offered by the Scientific
• American. Twenty-two mathematicians try their best to
• justify the title and if they do not succeed it is not their
• fault.
• WETZEL, REINHARD A.
• The New Relativity in Physics. Science, New York,
• 1913. New ser., vol. 38, pp. 466-474.
• Explains the relativity of time with diagrams and references
• to the literature.
• Other articles of general interest may be found in:
• Science: July 16, 1909; May 20, 1910; June 20, 1913;
• April 24, 1914; Dec. 5, 1919.
• Scientific American Supplement: April 7, 1917; Dec. 17,
• 1910.
• London Nation: Nov. 14 and Dec. 27, 1919.
• London Times: Nov. 8, 18, and 25, Dec. 4 and 19,
• 1919.
• London Nature: Almost every number in Nov., Dec., 1919,
• Jan., Feb., 1920.
• New York Times: Nov. 7 and 16, Dec. 21, 1919.
• New York Sun: Nov. 10, 1919.
• The New Republic: Jan. 21, 1920.

• For the mathematical reader:
• EINSTEIN, ALBERT.
• Bases physiques d’une théorie de la gravitation. Société
• Astronomique de France. Bulletin, Paris, 1917, Tome 31,
• pp. 407-411.
• Die formale Grundlage der allgemeinen Relativitätstheorie.
• Königlich Preussischen Akademie der Wissenschaften.
• Sitzungsberichte, Berlin, 1904 (Juli-Dez.), pp.
• 1030-1085.
• Die Grundlagen der allgemeinen. Relativitätstheorie. Annalen
• der Physik, Leipzig, 1916, Band 49, Folge 4, p. 769.
• Ist die Trägheit eines Korpers von seinem Energieinhalt
• abhängig? Annalen der Physik, Leipzig, 1905, Band 18,
• Folge 4, pp. 639-644.
• Lichtgeschwindigkeit und Statik des Gravitätionsfeldes.
• Annalen der Physik, Leipzig, 1912, Band 38, Folge 4, pp.
• 355-369.
• Prinzipielles zur allgemeinen Relativitätstheorie. Annalen
• der Physik, Leipzig, 1918, Band 55, Folge 4, pp. 241-244.
• Uber das Relativitätsprinzip und die aus demselben
• gezogenen Folgerungen. Jahrbuch der Radioaktivität und
• Elektronik, Leipzig, 1908, Band 4, pp. 411-462.
• Uber den Einfluss der Schwerkraft auf die Ausbreitung
• des Lichtes. Annalen der Physik, Lypzig, 1911. Band 35,
• pp. 898-908.
• Uber die Möglichkeit einer neuen Prüfung des Relativitätsprinzips.
• Annalen der Physik, Leipzig, 1907, Band 23,
• pp. 197-208.
• Uber die vom Relativitätsprinzip geforderte Trägheit der
• Energie. Annalen der Physik, Leipzig, 1907, Band 23,
• Folge 4, pp. 371-384.
• Uber einen die Erzeugung und Verwandlung des Lichtes
• betreffendes heuristischen Gesichtspunkt. Annalen der
• Physik, Leipzig, 1905, Band 17, Folge 4, pp. 132-148.
• Zum gegenwärtigen Stande des Gravitätionsproblems.
• Physikalische Zeitschrift, Leipzig, 1913, Band 14, pp. 1249-1266.
• Zum Relativitäts Problem. Scientia, Bologna, 1914, vol.
• 15, pp. 337-48.
• Zur Elektrodynamik bewegter Korper. Annalen der
• Physik, Leipzig, 1905, Band 17, Folge 4, pp. 891-921.
• Zur Theorie der Lichterzeugung und Lichtabsorption.
• Annalen der Physik, Leipzig, 1906, Band 20, Folge 4, pp.
• 199-206.
• Spielen Gravitationsfelder im Aufbau der materiellen
• Elementarteilchen eine wesentliche Rolle? Sitz. Preuss.
• Akad. Wiss., April 10, 1919.
• EINSTEIN, ALBERT, and MARCEL GROSSMAN.
• Entwurf einer verallgemeinerten Relativitätstheorie und
• einer Theorie der Gravitation. Zeitschrift für Mathematik
• und Physik, Leipzig, 1914, Band 62, pp. 225-261.
• EINSTEIN, LORENTZ and MINKOWSKI.
• Relativitätsprinzip, Das. Eine Sammlung von Abhandlungen.
• Mit Anmerkungen von A. Sommerfeld und Vorwort
• von O. Blumenthal. Leipzig: B. G. Teubner, 1913,
• 89 p. (Fortschritte der mathematischen Wissenschaften in
• Monographien, Heft 2.)
• A reprint of these three famous fundamental papers.
• ABRAHAM, M.
• Die neue Mechanik. Scientia, Bologna, 1914, vol. 15,
• pp. 8-27.
• Nochmals Relativität und Gravitation. Bemerkungen zu A.
• Einsteins Erwiderung. Annalen der Physik, Leipzig, 1912,
• Folge 4, vol. 39, pp. 444-448.
• BACKLUND, A. V.
• Zusammenstellung einer Theorie der klassischen Dynamik
• und der neuen Gravitätionstheorie von Einstein. Arkiv för
• mathematik, astronomie, och fysik, Stockholm, 1919, Band
• 14, no. 11, 64 seite.
• BATEMAN, H.
• General Relativity Theory. Phil. Mag., Feb., 1909, vol.
• 37.
• Applies the theory to life and mind.
• BRILLOUIN, MARCEL.
• Propos Sceptiques au Sujet du Principe de Relativité.
• Scientia, Bologna, 1913, vol. 13, pp. 10-26.
• BROSE, HENRY L.
• Einstein’s Theory of Relativity (non-math. form). Lecture
• published in pamphlet by B. H. Blackwell. Noted in
• English Mechanic, Dec. 19, 1919.
• CARMICHAEL, ROBERT DANIEL.
• The Theory of Relativity. Mathematical Monographs,
• no. 12. New York: John Wiley, 1913.
• COBB, CHARLES W.
• Relativity. Journal of Philosophy, Psychology, and Scientific
• Method, Jan. 18, 1917.
• CONWAY, A. W.
• Relativity. Edin. Math. Tracts, no. 3, London, 1913.
• CROMMELIN, A. C. D.
• Results of the Total Solar Eclipse of May 29 and the
• Relativity Theory. Science, vol. 50, pp. 518-520. Sci. Amer.
• Supp., Dec. 6, 1919.
• CUNNINGHAM, E.
• Report on the Relativity Theory of Gravitation. London,
• Green, 1915.
• DEZUANI, ARMANDO.
• Equilibrio relativo ed equazioni gravitazionali di Einstein
• nel caso stazionario. Il nuovo cimento, Pisa, 1919, vol. 18,
• pp. 5-25, July, 1919.
• DONDER, T. DE.
• Gravitational Tensors of Einstein’s Theory. Science Abstracts,
• April 30, 1919.
• DROSTE, J.
• The Field of Moving Centers in Einstein’s Theory of
• Gravitation. Koninklijke Akademie van Wetenschappen.
• Proceedings, Amsterdam, 1916, vol. 19, pp. 447-475.
• The Field of a Single Center in Einstein’s Theory of
• Gravitation and the Motion of a Particle in that Field.
• Koninklijke Akademie van Wetenschappen. Proceedings,
• Amsterdam, 1916, vol. 19, pp. 197-218.
• EDDINGTON, A. S.
• Report on the Relativity Theory of Gravitation. London:
• Fleetway Press, 1918. 91 p.
• The only account of Einstein’s latest theory in English.
• EDDINGTON, A. S., and OTHERS.
• The Deflection of Light by Gravitation and the Einstein
• Theory of Relativity. The Report of the British Eclipse
• Expedition to the Royal Society. Scientific Monthly, Jan.,
• 1920.
• GROSSMAN, MARCEL.
• Définitions, méthodes et problèmes mathématiques relatifs
• à la théorie de la gravitation. Archives des Sciences
• Physiques et Naturelles, Genève, Jan.-Juin, 1914, 4 période,
• Tome 37, pp. 13-19.
• GUILLAUME, E.
• Theory of Relativity. Archives des Sciences, Dec., 1918,
• vol. 46.
• HUMM, R. J.
• Energy Equations of General Theory of Relativity. Annalen
• der Physik, 1919, vol. 58.
• HUNTINGTON, EDWARD V.
• A new approach to the theory of relativity. Festschrift
• Heinrich Weber. Leipzig, 1912, pp. 147-169.
• ISHIWARA, JUN.
• Zur relativistischen Theorie der Gravitation. Tohoku Imperial
• University. Science reports, ser. 1, Sendai, Japan,
• vol. 4, pp. 111-160.
• KAFKA, H.
• Tensor Analysis. Annalen der Physik, 1919, vol. 58, pp.
• 1-54.
• KOTTLER, FRIEDRICH.
• Uber die physikalischen Grundlagen der einsteinschen
• Gravitätionstheorie. Annalen der Physik, Leipzig, 1918,
• Band 56, Folge 4, pp. 408-462.
• LARMOR, J.
• Essence of Physical Relativity. Nat. Acad. Sci. Proc.,
• vol. 4, Nov., 1918.
• LAUE, RD. M.
• Das Relativitätsprinzip. Braunschweig, 1911. 208 p.
• LECORNU, LÉON.
• La Mécanique. Paris: Flammarion, 1909.
• LORENTZ, H. A.
• Considerations élémentaires sur le principe de relativité.
• Revue générale des sciences, Paris, 1914. Tome 25, pp.
• 179-186.
• La gravitation. Scientia. Bologna, 1914, vol. 6, pp. 28-59.
• Das Relativitätsprinzip. 1914.
• La Gravitation. Scientia, Bologna, 1914, vol. 16, pp. 28-59.
• On Einstein’s theory of gravitation. Koninklijke Akademie
• van Wetenschappen. Proceedings, Amsterdam, 1917-18,
• vol. 19, pp. 1341-1369; vol. 20, pp. 2-34.
• On Hamilton’s principle in Einstein’s theory of gravitation.
• Koninklijke Akademie van Wetenschappen. Proceedings,
• Amsterdam, 1917, vol. 19, pp. 751-765.
• LUNN, ARTHUR C.
• Some functional equations in the theory of relativity.
• American Mathematical Society. Bulletin, Lancaster, Pa.,
• 1919, vol. 26, pp. 26-34.
• MICHELSON, A. A., and MORLEY, E. W.
• The Relative Motion of the Earth and the Luminiferous
• Ether. American Journal of Science, 1887, vol. 34, p. 333.
• See also: Astro-Physical Journal, vol. 37, pp. 100-193.
• The report of the crucial experiments that upset the idea
• of a stationary ether.
• MINKOWSKI, HERMANN.
• Relativitätsprinzip. Jahresbericht der Deutschen Mathematiker-Vereinigung.
• Leipzig, 1915, Band, 24, pp. 1241-1244.
• NORDSTRÖM, GUNNAR.
• Einstein’s theory of gravitation and Herglotz’s mechanics
• of continua. Koninklijke Akademie van Wetenschappen.
• Proceedings, Amsterdam, 1917, vol. 19.
• NORDSTRÖM, G.
• On the Energy of the Gravitation Field in Einstein’s
• Theory. Koninklijke Akademie van Wetenschappen. Proceedings,
• Amsterdam, 1918, vol. 20, pp. 1238-1245.
• PALATINI, A.
• La Teoria di Relatività nel suo Sviluppo Storieo. Scientia,
• Nov. and Dec., 1919 (in Italian and French).
• PLANCK, MAX.
• Zur Dynamik bewegter Systeme. Königlich Preussischen
• Akademie der Wissenschaften. Sitzungberichte, Berlin, 1907,
• pp. 542-570.
• His theory.
• PETZOLDT, J.
• Does the Relativity Theory Exclude the Reality of Space
• and Time? Deutsche Phys. Gesell., Dec. 30, 1918.
• RITZ, W.
• La gravitation. Scientia, Bologna, 1909, vol. 5, pp. 152-165.
• RUFUS, CARL.
• Relativity in astronomy. Popular Astronomy, Northfield,
• Minn., 1918, vol. 26, pp. 160-165.
• SILBERSTEIN, L.
• The Theory of Relativity. London: Macmillan, 1914,
• 92 p.
• SITTER, W. DE.
• On Einstein’s theory of gravitation, and its astronomical
• consequences. Royal Astronomical Society. Monthly Notices,
• London, 1915-18, vol. 76, pp. 699-728; vol. 77, pp.
• 155-184; vol. 78, pp. 3-28.
• On the relativity of rotation in Einstein’s theory.
• Koninklijke Akademie van Wetenschappen. Proceedings,
• Amsterdam, 1917, vol. 19, pp. 527-532.
• On the relativity of inertia. Remarks concerning Einstein’s
• latest hypothesis. Koninklijke Akademie van Wetenschappen.
• Proceedings, Amsterdam, 1917, vol. 19, pp.
• 1217-1255.
• Planetary motion and the motion of the moon according
• to Einstein’s theory. Koninklijke Akademie van Wetenschappen.
• Proceedings, Amsterdam, 1916, vol. 19, pp. 367-381.
• Further Remarks on the Solutions of the Field-equations
• of Einstein’s Theory of Gravitation. Koninklijke Akademie
• van Wetenschappen. Proceedings, Amsterdam, 1918, vol. 20,
• pp. 1309-1312.
• ST. JOHN, CHARLES EDWARD.
• The principle of generalized relativity and the displacement
• of the Fraunhofer lines toward the red. Carnegie
• Institution of Washington. Contributions of the Mount
• Wilson Solar Observatory, Washington, vol. 7, no. 138.
• TRESLIN, J.
• The equations of the theory of electrons in a gravitation
• field of Einstein deduced from a variation principle.
• Koninklijke Akademie van Wetenschappen. Proceedings,
• Amsterdam, 1917, Band 19, pp. 892-896.
• TUNZELMAN, G. W. DE.
• Relativity Theory. Science Progress, 1919, vol. 13.
• WEYL, H.
• Eine neue Erweiterung der Relativitätstheorie. Annalen
• der Physik, 1919, vol. 59, pp. 100-123.
• Raum, Zeit, Materie. Springer. 1918.
• Zur Gravitätionstheorie. Annalen der Physik, 1917, vol.
• 54, pp. 117-145.
• WILSON, EDWIN BIDWELL.
• Generalized coördinates, relativity, and gravitation. Astrophysical
• Journal, Chicago, 1917, vol. 45, pp. 244-253.
• WILSON, WILLIAM.
• Relativity and gravitation. Physical Society of London.
• Proceedings, London, 1919, vol. 31, pp. 69-77.
• WILSON and LEWIS.
• The Time-Space Manifold. Proceedings of the American
• Academy of Arts and Sciences, Nov., 1912, vol. 48, pp. 389-506.