Another corroboration of the truth of Plato's narrative is found in the fact that upon the Azores black lava rocks, and rocks red and white in color, are now found. He says they built with white, red, and black stone. Sir C. Wyville Thomson describes a narrow neck of land between Fayal and Monte da Guia, called "Monte Queimada" (the burnt mountain), as follows: "It is formed partly of stratified tufa of a dark chocolate color, and partly of lumps of black lava, porous, and each with a large cavity in the centre, which must have been ejected as volcanic bombs in a glorious display of fireworks at some period beyond the records of Acorean history, but late in the geological annals of the island." ("Voyage of the Challenger," vol. ii., p. 24). He also describes immense walls of black volcanic rock in the island.

The plain of Atlantis, Plato tells us, "had been cultivated during many ages by many generations of kings." If, as we believe, agriculture, the domestication of the horse, ox, sheep, goat, and hog, and the discovery or development of wheat, oats, rye, and barley originated in this region, then this language of Plato in reference to "the many ages, and the successive generations of kings," accords with the great periods of time which were necessary to bring man from a savage to a civilized condition.

In the great ditch surrounding the whole land like a circle, and into which streams flowed down from the mountains, we probably see the original of the four rivers of Paradise, and the emblem of the cross surrounded by a circle, which, as we will show hereafter, was, from the earliest pre-Christian ages, accepted as the emblem of the Garden of Eden.

We know that Plato did not invent the name of Poseidon, for the worship of Poseidon was universal in the earliest ages of Europe; "Poseidon-worship seems to have been a peculiarity of all the colonies previous to the time of Sidon." ("Prehistoric Nations," p. 148.) This worship "was carried to Spain, and to Northern Africa, but most abundantly to Italy, to many of the islands, and to the regions around the Ægean Sea; also to Thrace." (Ibid., p. 155.)

Poseidon, or Neptune, is represented in Greek mythology as a sea-god; but he is figured as standing in a war-chariot drawn by horses. The association of the horse (a land animal) with a sea-god is inexplicable, except with the light given by Plato. Poseidon was a sea-god because he ruled over a great land in the sea, and was the national god of a maritime people; he is associated with horses, because in Atlantis the horse was first domesticated; and, as Plato shows, the Atlanteans had great race-courses for the development of speed in horses; and Poseidon is represented as standing in a war-chariot, because doubtless wheeled vehicles were first invented by the same people who tamed the horse; and they transmitted these war-chariots to their descendants from Egypt to Britain. We know that horses were the favorite objects chosen for sacrifice to Poseidon by the nations of antiquity within the Historical Period; they were killed, and cast into the sea from high precipices. The religious horse-feasts of the pagan Scandinavians were a survival of this Poseidon-worship, which once prevailed along all the coasts of Europe; they continued until the conversion of the people to Christianity, and were then suppressed by the Church with great difficulty.

We find in Plato's narrative the names of some of the Phoenician deities among the kings of Atlantis. Where did the Greek, Plato, get these names if the story is a fable?

Does Plato, in speaking of "the fruits having a hard rind, affording drinks and meats and ointments," refer to the cocoa nut?

Again: Plato tells us that Atlantis abounded in both cold and hot springs. How did he come to hit upon the hot springs if he was drawing a picture from his imagination? It is a singular confirmation of his story that hot springs abound in the Azores, which are the surviving fragments of Atlantis; and an experience wider than that possessed by Plato has taught scientific men that hot springs are a common feature of regions subject to volcanic convulsions.

Plato tells us, "The whole country was very lofty and precipitous on the side of the sea, but the country immediately about and surrounding the city was a level plain, itself surrounded by mountains which descended toward the sea." One has but to look at the profile of the "Dolphin's Ridge," as revealed by the deep-sea soundings of the Challenger, given as the frontispiece to this volume, to see that this is a faithful description of that precipitous elevation. "The surrounding mountains," which sheltered the plain from the north, are represented in the present towering peaks of the Azores.

Plato tells us that the destruction of Atlantis filled the sea with mud, and interfered with navigation. For thousands of years the ancients believed the Atlantic Ocean to be "a muddy, shallow, dark, and misty sea, Mare tenebrosum." ("Cosmos," vol. ii., p. 151.)