Untersuchungen uber den Stoffwechsel des Pferdes bei Ruhe und Arbeit.

Berlin:: Paul Parey, 1898., 1898. 8vo. (250 x 166 mm) viii, 438, [2] pp. 7 plates. Original quarter black cloth over marbled boards, gilt-stamped spine title; boards rubbed. Exlib ink stamps on title-page, bookplate of Andras Gedeon. Very good. FIRST EDITION. As early as 1889, together with Zuntz, he published a comprehensive work on the metabolism of horses at rest and at work, which represented the state of research at the time. In this physiological study, Zuntz and Hageman determined the cardiac output of horses (under workload and at rest) from the oxygen balance to be 75ml/min/kg. Nathan Zuntz, German physiologist, born in Bonn, was a pioneer of modern altitude physiology and aviation medicine. See: Andras Gedeon, Science and technology in medicine, #56.5 (p. 291-2) (Note: this was his copy).