A fine collection of eleven offprints, including two distinguished as some of his major works: Zur affinen Feldtheorie and Einheitliche Theorie von Gravitation und Elektrizität.
[In:] Sitzungberichte der Preussischen Akademie der Wissenschaften. [Comprising:] EINSTEIN, Alfred. Geometrie und Erfahrung. 1921. —. Zur Theorie der Lichtfortpflanzung in dispergierenden Medien. 1922. —. Zur allgemeinen Relativitätstheorie. 1923. —. Zur affinen Feldtheorie. 1923. —. Zu Kaluzas Theorie des Zusammenhanges von Gravitation und Elektrizität. Erste Mitteilung [with] Zweite Mitteilung. 1927. —. Riemann-Geometrie mit Aufrechterhaltung des Begriffes des Fernparallelismus. 1928. —. Die Kompatibilität der Feldgleichungen in der einheitlichen Feldtheorie. 1930. EINSTEIN, Alfred, & W. Mayer. Zwei strenge statische Lösungen der Feldgleichungen der einheitlichen Feldtheorie. 1930. EINSTEIN, Alfred. Zum kosmologischen Problem der allgemeinen Relativitätstheorie. 1931. EINSTEIN, Alfred, & W. Mayer. Systematische Untersuchung über kompatible Feldgleichungen, welche in einem Riemannschen Raume mit Fernparallelismus gesetzt werden können. 1931. —. Einheitliche Theorie von Gravitation und Elektrizität. 1931.Berlin: Verlag der [Preussischen] Akademie der Wissenschaften in Kommission bei Walter de Gruyter u. Co., 1921-31 Stock Code: 130099
Some of Einstein's most celebrated lectures and papers, in the original offprint formatFirst separate editions, rare, comprising eleven of Einstein's papers written for the Prussian Academy of Sciences journal, Sitzungsberichte, including two distinguished as some of his major worksZur affinen Feldtheorie (1923) and Einheitliche Theorie von Gravitation und Elektrizität (1931), both asterisked in Weil and included in the Norman Librarythree co-authored with his assistant, Walther Mayer, and another, Geometrie und Erfahrung (1921), considered one of his most celebrated lectures. The remaining offprints concern various aspects of Einstein's attempts to achieve a unified field theory that would combine the separate gravitational and electromagnetic field theories, the first of which he himself had created. First issued as part of the Academy's journal, these offprints would have been printed in relatively small numbers from the same type setting but often with new pagination. Most, but not all, would have been given to Einstein for presentation to colleagues, hence their scarcity.
Einheitliche Theorie von Gravitation und Elektrizität is the first paper to present Einstein's original approach to unified field theory, and the first to use the term "unified field theory" in its title. Though he had written several papers on this subject previously, these were predominately reactions or critiques to the ideas of others (such as his 1927 note on Theodor Kaluza, also present in this collection). The American philosopher of science Michael Friedman called Einstein's aforementioned 1921 paper on Geometry and Experience "a landmark in the philosophy of geometry", a particularly beautiful lecture which "provided a very clear and sharp version of the distinction between 'pure' and 'applied'mathematical and physicalgeometry that soon became canonical in 20th-century scientific thought" (p. 193). It contains Einstein's famous answer to the question of why mathematics should be so well adapted to describing the external world: "In so far as the Laws of Mathematics refer to the external world, they are not certain; and in so far as they are certain, they do not refer to reality".
At the recommendation of Max Planck and Walther Nernst, in November 1913 Einstein became, at the age of 34, the youngest member of the Academy. His yearly salary of 12,000 marks, plus the stipulation that he have no teaching requirements, allowed him to concentrate almost entirely on his research. He presented his field equations of general relativity in a four-part speech to the Academy on 25 November 1915 and continued to give occasional lectures until his resignation in April 1933, part of his opposition to German institutions in implicit support of Hitler's regime. Mayer had become his assistant in 1929, whom Einstein insisted be also appointed to Princeton when he was given a professorship at the Institute of Advanced Studies there in 1932.
11 offprints, tall quartos (10 of which 256 x 183 mm, one 268 x 189 mm), between 6 and 20 pp. Original orange printed wrappers.
Fine copies, a few with some faint creasing to wrappers.
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