EINSTEIN, A.

Zum gegenwärtigen Stande des Gravitationsproblems.

Leipzig, S. Hirzel, 1913.

Royal8vo. Uncut, unopened in the original wrappers. In "Physikalische Zeitschrift", Vol. 14, 1913. Entire issue offered. Front wrapper detached and lower right corner is missing. Extremities with nicks, otherwise very fine and clean. Rare unopened. Pp. 1249-1266. Discussion; Pp. 1262-66. [Entire volume: XXXI, (1), 1312 pp. + LVI plates].

First printing the famous address that Einstein gave on the occasion on the 85th Congress "Versammlung Deutscher Naturforscher und Aerzte zu Wien" in their meeting September 23, 1913, together with the ensuing discussion. In it he compared the development of the various theories of gravitation with the development of successive concepts of electricity.

Weil No. 54.

Order-nr.: 47060