[141] Now pronounced the work of another. See The Literary Works of Leonardo da Vinci, compiled and edited from the original manuscripts by Jean Paul Richter, London, 1883, where (vol. ii. p. 224) it is said that the Marchese Girolamo d’Adda has brought proof to this end.

[142] Vol. III. p. 214.

[143] Ibid.

[144] Ibid. p. 201.

[145] This chart is given in the atlas (no. iv.) to Kunstmann’s Entdeckung Amerikas; in Stevens’s Notes, etc., pl. v.; in H. H. Bancroft’s Central America, vol. i. 133 (erroneously); and in part in Kohl’s Discovery of Maine, pl. x. A portion of it is sketched in Vol. III. p. 56. Harrisse (Cabots, p. 167) puts it after Balboa’s visit to Panama in 1516-1517, and before 1520, because it shows no trace of Magellan’s Straits. A map of Laurentius Frisius, 1525 (Kohl Collection, no. 102), represents the southern part of what appears to be Greenland, with an island marked “Terra laboratoris” lying west of its extreme point, while the edge of “Terra nova contemti” (Corterealis) is seen further west.

[146] In Kohl’s Die beiden ältesten General-Karten von Amerika, with a section in his Discovery of Maine. Harrisse ascribes it to Nuño Garcia de Toreno. A full consideration of this and of the Ribero map belongs to Vol. II.

[147] Magazine of American History, 1883, p. 477. For Maiollo’s cartographical skill, see Heinrich Wüttke’s “Geschichte der Erdkunde” in the Jahresbericht des Vereins für Erdkunde in Dresden, 1870, p. 61. There are other notes of Maiollo’s work in the Giornale Ligustico, 1875; in D’Avezac’s Atlas hydrographique de 1511, p. 8; in Uzielli’s Elenco, etc.; and in Harrisse’s Cabots, p. 166.

[148] Vol. III. p. 218. Harrisse, Cabots, p. 188, gives a considerable essay on Agnese’s maps. Agnese lived and worked at Venice from 1536 to 1564.

[149] Verrazzano, p. 103.

[150] See Vol. III. pp. 199, 201; cf. also the Münster map of 1544, as given by Lelewel, Géographie du Moyen-Âge, pl. 46.