[229] Schöner, J. Opera Mathematica. Norimbergae, 1551. See p. 127 for what has been thought to be a representation of Schöner’s terrestrial and celestial globes of 1533. It will be noted that the maps in each of these globe pictures have been reversed.

[230] See above, p. 96.

[231] Wieser. Magalhâes-Strasse. p. 76, and Tab. V, which is a copy of the southern hemisphere; Harrisse. Discovery. pp. 592-594, and pl. XVII, which is a copy of the western hemisphere; Santarem, V. de. Notice sur plusieurs monuments géographiques inedits.... (In: Bulletin de la Société de Géographie. Paris, 1847. p. 322.); Stevens, H. Notes. New Haven, 1869. p. 19; Nordenskiöld. Facsimile Atlas, pp. 80, 83; Winsor. Narrative and Critical History. Vol. VIII, p. 388.

[232] Harrisse. Discovery. p. 610.

[233] Harrisse. Discovery. p. 613, and pl. XXII, which is a representation of the western hemisphere.

[234] Michow, H. Caspar Vopell ein Kölner Kartenzeichner des 16 Jahrhunderts mit 2 Tafeln und 4 Figuren. (In: Hamburgische Festschrift zur Erinnerung an die Entdeckung von Amerika. Hamburg, 1892. Vol. I, pt. 4.); Graf, J. H. Ein Astrolabium mit Erdkugel aus dem Jahre 1545, von Kaspar Volpellius. (In: Jahresbericht d. Geographischen Gesellschaft zu München. 15 Heft, p. 228); Nordenskiöld, op. cit., p. 83, and pl. XL, which gives a representation of the globe of 1543, twelve gores in colors; Merlo, J. J. Nachrichten vom Leben und den Werken Kölner Künstler, Köln, 1850. p. 493.

[235] Nordenskiöld, op. cit., pl. XLV.

[236] Korth, L. Die Kölner Globen des Kaspar Vopelius. (In: Globus. Braunschweig, 1883. Vol. XLIV, pp. 62-63.)

[237] Described briefly by Michow, op. cit., p. 12.

[238] Letter of August 12, 1913.