Die Ursache der Mäanderbildung der Flussläufe und des sogenannten Baerschen gesetzes (+) Vorschlag zu einem die Natur des elementaren Strahlungsemissionsprocesses betreffenden Experiment [Einstein] (+) Atomtheorie und Mechanik [Bohr].

Berlin, Julius Springer, 1926. Lex8vo. In ""Die Naturwissenschaften"", Vierzehnter Jahrgang, 1926. Entire volume offered bound in a nice contemporary half calf with five raised band and gilt lettering to spine. Minor wear to capitals, otherwise a very fine and clean copy. [Einstein:] Pp. 223-24" Pp. 300-1 [Bohr:] Pp. 1-10. [Entire volume: XXVIII, 1286, 72 pp.].

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First edition of all three papers. In the first paper, Einstein explains the causes behind Baer's law: Due to the rotation of the earth erosion occurs mostly on the right banks of rivers in the Nothern Hemisphere while in the Southern Hemisphere erosion occurs primarily on the left banks. Weil Nos 150154