altered in Ptolemy, [111], [114];
facsimiles of this alteration, [111], [128];
maps possibly to be used by the young Zeno, [114], [126];
map compared with that of Olaus Magnus, [126];
condition of northern cartography at the date of the Zeno publication, [126], [127].
Zerffi, Hist. development of art, [416].
Zestermann, C. A. A., Colonization of America, [60], [83].
Ziegler, America, [xxxiii], [125].
Zoana Mela, [122].