M. Blundeuile his exercises - Blundeville, Thomas (Printed by William Stansby, and are to be sold by Richard Meighen, at his shop vnder Saint Clements Church without Temple Barre, 1622)
Reproduction of the original in the British Library
Keywords: Plancius; Petrus; Mercator; Gerhard; Astronomy; Arithmetic; Early maps; Trigonometry