| Many-colored Butterflyingfish. | Frontispiece |
| -- Exonautes nonsuchae -- Exonautes rondeletii | |
| 1. Millions of years ago Mount Bermuda nosed its way | |
| to the upper air through two miles of ocean. | 16 |
| 2. Modern Mount Bermuda from the air. | 17 |
| 3. The largest single cells in the world: Halicystis, a | |
| one-celled seaweed, known in Bermuda as sea bot- | |
| tles, and looking like emeralds. | 32 |
| 4. The water-worn gorges show the many lines of | |
| wind-blown eolian sand. | 33 |
| 5. A sixty-foot cliff showing the alternate soil and sand | |
| layers of three glacial periods. | 36 |
| 6. Palmetto palms buried in a sand-storm at least two | |
| hundred thousand years ago. | 37 |
| 7. A stunted cedar of Nonsuch, two hundred and | |
| seventy-six years old. | 44 |
| 8. Nonsuch vegetation: Cedar trees and undergrowth | |
| of goldenrod and sage-bush. | 45 |
| 9. Gurnet Rock. The water in the foreground covers | |
| Almost Island. | 48 |
| 10. Gurnet Rock at night. At this time sharks come in | |
| by the hundred from the open sea. | 49 |
| 11. Looking down through the ceiling of Almost Island | |
| to the brain corals and seafans of the reef floor. | 64 |
| 12. Four tenants of Almost Island: Abudefdufs, a | |
| Striped Grunt and a Blue Surgeon. | 65 |
| 13. The author studying fish, four fathoms under sea. | 68 |
| 14. Pempherids inhabit Almost Island by the hundred. | 69 |
| 15. Shooting flyingfish from the bow of the Skink. | 76 |
| 16. Nest of Four-winged Flyingfish. A floating ball of | |
| Sargassum bound together with silken threads. | 77 |
| 17. Newly-laid eggs of flyingfish in Sargassum, weed. | |
| Greatly enlarged photograph. | 80 |
| 18. Eggs of flyingfish ready to hatch, and one newly- | |
| hatched fish. | 81 |