CHAPTER 14.
Great range composed of boulder clay.—Daraily.—Lost on the savannahs.—Jamaily.—A deer-hunter's family.—Totagalpa.—Walls covered with cement and whitewashed.—Ocotal.—The valley of Depilto.—Silver mine.—Geology of the valley.—Glacial drift.—The glacial period in Central America.—Evidence that the ice extended to the tropics.—Scarcity of gold in the valley gravels. —Difference of the Mollusca on the east and west coast of the Isthmus of Darien.—The refuge of the tropical American animals and plants during the glacial period.—The lowering of the sea-level. —The land shells of the West Indian Islands.—The Malay Archipelago.—Easter Island.—Atlantis.—Traditions of the deluge.