Note 530 — III The Sixteenth Century [1502-80] (continued 3)

This volume contains also two brief treatises by Nunez in Portuguese: Tratado ... sobre certas duuidas da nauegação, answering certain questions put to him by Martim Afonso de Sousa, and Tratado ... em defensam da carta de marear, addressed to the Infante Luis. The De Sphaera of Joannes de Sacro Bosco was printed with a preface by Philip Melanchthon in 1538. Arraez, in his Dialogos, 1604 ed., f. 56, says: sei algo da Sphera porque quando Pero Nunez a lia a certos homens principais eu me achava presente.