Author: AA.VV.,
Title: Year book - The Academy of Natural Science of Philadelphia for the year ending December 31, 1927
Description: 1928. In 8vo, broch., pp. 106 with 9 pls. contain: Huber, On The Bear river Expedition; Newbold: Collecting mountain sheep and goats; Rehn, Costa Rica revisited.

Keywords: natural sciences travels


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