stars, originally communicated to the Göttingen Royal Society in 1760. The remaining manuscripts included papers on atmospheric refraction from 1755, on the motion of Mars as affected by the perturbations of Jupiter and the Earth (1756), and on terrestrial magnetism (1760 and 1762). In these last Mayer sought to explain the magnetic action of the Earth by a modification of Euler's hypothesis, and made the first really definite attempt to establish a mathematical theory of magnetic action (C. Hansteen, Magnetismus der Erde, I, 283). In 1881 Ernst Klinkerfues published photo-lithographic reproductions of Mayer's local charts and general map of the Moon. His star catalogue was re-edited by Francis Baily in 1830 (Memoirs of the Royal Astronomical Society IV, 391) and by Arthur Auwers in 1894. Honors: Lunar crater T. Mayer (Southwest of crater Copernicus). Family His son Johann Tobias Mayer became a noted German physicist. Notes References A. G. Kästner, Elogium Tobiae Mayeri (Göttingen, 1762) Jérôme Lalande, Connaissance des Temps, 1767, p. 187 Monatliche Correspondenz, VIII, 257; IX, 45, 415, 487; XI, 462 Allgemeine Geographische Ephemeriden III, 116, 1799 (portrait) A. G. Kästner, Berliner Astronomisches Jahrbuch, Suppl. Bd. III, 209, 1797 J. B. J. Delambre, Histoire de l'Astronomie au Dix-huitième Siecle, (Paris, 1827), p. 429 Robert Grant, History of Physical Astronomy from the Earliest Ages to the Middle of the Nineteenth Century (London, 1852), pp. 46, 488, 555 Arthur Berry, A Short History of Astronomy (London, 1898), p. 282 J. S. Pütter, Versuch einer academischen Gelehrten-Geschichte von der Universität zu Gottingen, I, 68 J. Gehler, Physikalisches Wörterbuch neu bearb. von H.W. Brandes [u.a.]. (Leipzig, 1825- ), VI, 746, 1039 Attribution: Further reading Eric G. Forbes: Tobias Mayer (1723–1762), pioneer of enlightened science in Germany. Göttingen: Vandenhoeck & Ruprecht, 1980 German edition as: Tobias Mayer (1723-62), Pionier der Naturwissenschaften der deutschen Aufklärungszeit übers. von Maria Forbes u. Hans-Heinrich Vogt. Marbach am Neckar: Tobias-Mayer-Museum-Verein, 1993 (Schriftenreihe des Tobias-Mayer-Museum-Vereins e.V.; Nr. 17) Sarah Lowengard, "Tobias Mayer's Trichromatic Graph," The Creation of Color in Eighteenth-Century Europe New York, Columbia University Press, 2006. http://www.gutenberg-e.org/lowengard/A_Chap03.html#31 Tobias Mayer: Tobias Mayer's Opera inedita: the first translation of the Lichtenberg edition of 1775, by Eric G. Forbes. London: Macmillan, 1971 (American ed.: New York: American Elsevier, 1971 ) Tobias Mayer: The unpublished writings of Tobias Mayer by Eric G. Forbes. Göttingen: Vandenhoeck & Ruprecht, 1972. 3v. (v. 1); (v. 2); (v. 3) (Arbeiten aus der Niedersächsischen Staats- und Universitätsbibliothek