MEDINA, 1544.
1548, Gastaldi.
In the Venice Ptolemy of 1548, we have for the first time a series of maps of the New World by Gastaldi, which were simply enlarged by Ruscelli in the edition of 1561, except in a few instances, where new details were added, like the making of Yucatan a peninsula instead of the island which Gastaldi had drawn. They were repeated in the edition of 1562.
Sea manuals.
Meanwhile the most popular sea manuals of this period were Spanish; but they studiously avoided throwing much light on the new geography.
WYTFLIET, 1597.
[1st part]
[WYTFLIET, 1597. (complete view)]
![[WYTFLIET, 1597. (complete view)]](#5846783241346312924_illus-630-631.jpg.id-1823527167125801794.wrap-0.html.html){kind=link}
That of Martin Cortes was the first to suggest a magnetic pole as distinct from the terrestrial pole. Its rival, the Arte de Navegar of Pedro de Medina, published at Valladolid in 1545, never reached the same degree of popularity, nor did it deserve to, for his notions were in some respects erratic.