First offprint of first attempt by Einstein to formulate the Unified Field Theory, 1923

Albert EINSTEIN: ZUR AFFINEN FELDTHEORIE. [On Affine Field Theory.] Sitzungsberichte der Preussischen Akademie der Wissenschaften, XVII (1923). Sitzung der physikalisch-mathematischen Klasse vom 31. Mai. Sonderabdruck [Offprint]). Berlin: Verlag der Akademie der Wissenschaften (in commission at Walter de Gruyter [Reichsdruckerei]), 28th June 1923.

Imperial 8vo (25,4:18,2 cm). 4 pages, numbered 137-140. Letterpress on machine paper, in original publisher’s brochure on orange stock with black title printing.

First offprint in the original wrappers, of this first attempt of Einstein to formulate the Unified Field Theory.

Content: In this important paper Einstein gives his first investigation of "Affine geometries" and introduces the notion of "Distant parallelism", thus for the first time attempting to formulate a unified field theory based on the research of the German mathematician, theoretical physicist and philosopher Hermann Weyl.

Condition: Fine.

Reference: Alicke 113; Norman Library 698; Schilpp-Shields 175; Weil *132.