6.

“Along the whole coast of the Red Sea, in the deep part of the water grow trees resembling the laurel and the olive. When the tide ebbs, the whole trees are visible above the water, and at the full tide they are sometimes entirely covered. This is the more singular because the coast inland has no trees.”

This is the description given by Eratosthenes of the Persian Sea, which forms, as we have said, the eastern side of Arabia Felix.