CONCEPTIONS OF COLUMBUS 



Fig. 3 — Ptolemy's map of the known world in 150 A.D. from the printed 



bian geography the three Bartholomew Columbus 

 sketch maps (ca. 1503) found by Wieser in Florence/' 



6 F. R. von Wieser: Die Karte des Bartolomeo Colombo iiber die 

 vierte Reise des Admirals, text and facsimile of three maps, reprint from 

 Mitt, des Inst, fur Osterreichische Geschichtsforschung, Innsbruck, 1893 

 (maps reproduced in Nordenskiold, Periplus. pp. 167-169). 



