Prince Henry the Navigator, the Hero of Portugal and of Modern Discovery, 1394-1460 A.D.

all circles representing: (1) The Ptolemaic System in the Spheres. (2) The lunar influences over the tides. (3) The circles described in the terrestial globe. (4) A picture of the expulsion from Eden, with the four sacred rivers.

MAP OF 1492 322

(B. Mus., Add. mss. 15760). This gives a general view of the Portuguese discoveries along the whole W. coast of Africa, and just beyond the Cape of Good Hope, which was rounded in 1486.

[Footnote 6: **Missing.** Please see the Transcriber's Note at the foot of the text.]

PREFACE

This volume aims at giving an account, based throughout upon original sources, of the progress of geographical knowledge and enterprise in Christendom throughout the Middle Ages, down to the middle or even the end of the fifteenth century, as well as a life of Prince Henry the Navigator, who brought this movement of European Expansion within sight of its greatest successes. That is, as explained in Chapter I., it has been attempted to treat Exploration a