Einstein, Albert. Collection of 10 first issue offprints from the "Sitzungsberichte der preußischen Akademie der Wissenschaften".

Berlin, Verlag der Akademie der Wissenschaften / de Gruyter, 1922-1932.

I: Zur Theorie der Lichtfortpflanzung in dispergierenden Medien. 1922. [Weil 120. Seelig 162. Schilpp-Shields 145. Boni 132]. II: Zu Kaluzas Theorie des Zusammenhanges von Gravitation und Elektrizität. Erste [und zweite] Mitteilung. 1927. [Weil 156. Seelig 212]. III: Riemann-Geometrie mit Aufrechterhaltung des Begriffes des Fernparallelismus. 1928. [Weil 161. Seelig 161. Boni 174]. IV: Neue Möglichkeit für eine einheitliche Feldtheorie von Gravitation und Elektrizität. 1928. [Weil 162. Seelig 218. Cf. PMM 416]. V: Einheitliche Feldtheorie und Hamiltonsches Prinzip. 1929. [Weil 166. Seelig 227. Schilpp-Shields 227. Boni 184. Cf. PMM 416]. VI: Die Kompatibilität der Feldgleichungen in der einheitlichen Feldtheorie. 1930. [Weil 169. Seelig 239]. VII: Zum kosmologischen Problem der allgemeinen Relativitätstheorie. 1931. [Weil 179. Seelig 249, Schilpp-Shields 249]. VIII: Systematische Untersuchung über kompatible Feldgleichungen, welche in einem Riemannschen Raume mit Fernparallelismus gesetzt werden können. 1931. [Weil 180. Seelig 250. Schilpp-Shields 250]. IX: Einstein & W. Mayer: Einheitliche Theorie von Gravitation und Elektrizität. 1931. [Weil 182. Seelig 251. Hook/Norman 701]. X: Einstein & W. Mayer: Einheitliche Theorie von Gravitation und Elektrizität. Zweite Abhandlung. 1932. [Weil 185].

 2,800.00

10 of a total of 36 "Sonderausgaben aus den Sitzungsberichten" published under Einstein's name between 1914 and 1932. Such offprints of the session reports of the Academy of Sciences (largely with independent pagination) were presented to the author by the publisher in a limited number as vouchers or dedication copies.

The present offprints date from Einstein's middle and late period at the Berlin Academy. They mainly treat the connection between gravity and electricity/electromagnetism. Einstein strove for a "unified field theory", as the General Theory of Relativity did not allow for properly integrating the electromagnetic field into the geometry of space-time. After a first attempt at a solution in 1925, Einstein tackled the problem again three years later, "only to find that Riemann's conception of space, on which the general theory was based, would not permit of a common explanation of electromagnetic and gravitational phenomena. In a series of papers devoted to the development of 'A Uniform Theory of Gravitation and Electricity' he outlined a new theory of space with a view to the unification of all forms of activity that fall within the sphere of physics, giving them a common explanation. All that would then remain to complete a scientific unison is the correlation of the organic and inorganic" (PMM 416).

The present offprints reach from the first publication after the Nobel Prize to the last but one before Einstein's leaving Germany. Three articles were published in collaboration with Einstein's assistant, Walter Mayer.

One issue with slight crease to front cover, otherwise very fine throughout.

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