The geographical conceptions of Columbus; a critical consideration of four problems Nunn, George E. (George Emra), 1882- creator American Geographical Society of New York. contributor text book New York American Geographical Society 1924 1924
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ENG Issued also as thesis (Ph. D) University of California, 1924. The determination of the length of a terrestrial degree by Columbus.--The route of Columbus on his first voyage as evidence of his knowledge of the winds and currents of the Atlantic.--Did Columbus believe that he reached Asia on his fourth voyage?--The identity of Florida on the Cantino map of 1502. Columbus, Christopher Early maps E118 .N96 American Geographical Society research series, no. 14 https://www.biodiversitylibrary.org/bibliography/47249 359854 24027885 10.5962/bhl.title.47249 DLC