(All illustrations, except Figs. 1, 15, and 23, are reproductions of medieval maps. The source is indicated in a general way in each title; the precise reference will be found in the text where the map is first discussed.)
| FIG. | PAGE | |
| 1 | Map of the Sargasso Sea, 1:72,000,000 | 28 |
| 2 | The Pizigani, 1367 (two sections) | 40–41 |
| 3 | Beccario, 1426 | 45 |
| 4 | Dalorto, 1325 | 51 |
| 5 | Catalan map, 1375 | 58 |
| 6 | Nicolay, 1560 | 62 |
| 7 | Catalan map, about 1480 | 64 |
| 8 | World map in portolan atlas, about 1508 (Egerton MS. 2803) | 74 |
| 9 | Desceliers, 1546 | 76 |
| 10 | Ortelius, 1570 | 77 |
| 11 | Ptolemy, 1513 | 82 |
| 12 | Prunes, 1553 | 88 |
| 13 | Coppo, 1528 | 97 |
| 14 | Bishop Thorláksson, 1606 | 98 |
| 15 | Map of the early Norse Western and Eastern Settlements of Greenland, 1:6,400,000 | 103 |
| 16 | Clavus, 1427 | 104 |
| 17 | Donnus Nicolaus Germanus, after 1466 | 105 |
| 18 | Sigurdr Stefánsson, 1590 | 107 |
| 19 | Zeno, 1558 | 126 |
| 20 | Beccario, 1435 | 152 |
| 21 | Pareto, 1455 | 158 |
| 22 | Benincasa, 1482 | 160 |
| 23 | Representation of Corvo on fourteenth- and fifteenth-century maps as compared with its present outline | 172 |
| 24 | Buss Island, probably 1673 | 176 |
| 25 | Bianco, 1436 | 179 |