In the Museum manuscripts, no. 22,018, is a portolano by Martines, dated 1579; and another, of date 1582, is entered in the 1844 edition of the Catalogue of Manuscript Maps, i. 31. Kohl’s Washington Collection includes two Martines maps of 1578.

The manuscript map of Diegus (Homem) of 1568, in the Royal Library in Dresden, gives the peninsula, but turns the more northerly coast abruptly to the east, connecting it with the archipelago, which stands for the St. Lawrence in his map of 1558.[1319]

The great Mappemonde of Mercator, published at Duisburg in 1569, in which he introduced his new projection,[1320] as will be seen by the annexed sketch,[1321] keeps to the Martines type; and while it depicts the Straits of Anian, it renders uncertain, by interposing a vignette, the passage by the north from the Atlantic to the Pacific.[1322] The next year Ortelius followed the same type in his Theatrum orbis terrarum,—the prototype of the modern atlas.[1323]

A similar western coast[1324] is defined by Porcacchi, in his L’ isole piu famose del mondo, issued at Venice in 1572.[1325]

The peninsula of California, but nothing north of it, is again delineated in a Spanish mappemonde of 1573, shown in Lelewel.[1326] The Mercator type is followed in the maps which are dated 1574, but which appeared in the Theatri orbis terrarum enchiridion of Philippus Gallæus, published at Antwerp in 1585.[1327]

ZALTIERI, 1566.

It was published at Venice, and was in part followed by Ortelius in 1570. It is also sketched in Vol. IV. p. 93.