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.].
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
Berlin, Julius Springer, 1926. 4to. Contemp. hcloth. Some wear to binding. ""Die Naturwisenschaften. Hrsg. von Arnold Berliner. Vierzehnter Jahrgang"". XXVIII,1286,44 pp. Einstein papers: pp. 223-224 and 300-301. Bohr paper pp. 1-10. The whole volume offred.
All 3 papers in first edition. - Weil Nos 150"154.