Beschreibung:

Albert Einstein -- Max Born Two works on Einstein's theory of relativity, comprising: i) Albert Einstein, Relativity: The Special and the General Theory, a Popular Exposition. London: Methuen & Co., 1920. FIRST ENGLISH LANGUAGE EDITION, 8vo (188 x 120mm.), lithographed frontispiece portrait of Einstein, five diagrams, 8 pages of publisher's advertisements at rear, publisher's red cloth, title stamped in dark brown to spine and in blind to upper cover, DUST-JACKET, upper hinge cracked, prelims browned, spotting at extremities, marginal tear to p. 115, some discolouration to dust-jacket with loss of section at rear and extremities frayed; ii) Max Born, Einstein's Theory of Relativity. London: Methuen & Co., 1924. Third edition, 8vo (222 x 135mm.), photographic frontispiece portrait of Einstein, 135 diagrams, publisher's blue cloth, title gilt stamped to spine and in blind to upper cover, DUST-JACKET, dampstain to lower margins, dampstain to spine and upper cover, extremities bumped, some discolouration to dust-jacket with split along upper hinge and extremities frayed