Elementare Theorie der Wasserwellen und des Fluges. - [EINSTIN ON AIRCRAFTS]

Berlin, Julius Springer, 1916. Royal8vo. Bound in contemporary half calf with gilt lettering to spine. In ""Die Naturwissenschaften"", 4 Jahrgang, 1916. A very nice and clean copy. Pp. 509-510. [Entire volume: XIV, 866 pp.].

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First printing of Einstein's only paper on aircrafts. In it he proposed a new shape for aircraft wings. Disappointed that nobody took up his idea he took it to an airline in Berlin. A prototype was constructed but it performed poorly and it was never put into service.