The same remark applies to the account of the great Saturnian continent that closes the curious and interesting dialogue “On the Face appearing in the Orb of the Moon,” attributed to Plutarch, and printed with his _Morals_: “‘An isle, Ogygia, lies in Ocean’s arms,’” says the narrator, “about five days’ sail west from Britain; and before it are three others, of equal distance from one another, and also from that, bearing northwest, where the sun sets in summer. In one of these the barbarians feign that Saturn is detained in prison by Zeus.” The adjacent sea is termed the Saturnian, and the continent by which the great sea is circularly environed is distant from Ogygia about five thousand stadia, but from the other islands not so far. A bay of this continent, in the latitude of the Caspian Sea, is inhabited by Greeks. These, who had been visited by Heracles, and revived by his followers, esteemed themselves inhabitants of the firm land, calling all others islanders, as dwelling in land encompassed by the sea. Every thirty years these people send forth certain of their number, who minister to the imprisoned Saturn for thirty years. One of the men thus sent forth, at the end of his service, paid a visit to the great island, as they called Europe. From him the narrator learned many things about the state of men after death, which he unfolds at length, the conclusion being that the souls of men ultimately arrive at the moon, wherein lie the Elysian Fields of Homer. “And you, O Lamprias,” he adds, “may take my relation in such part as you please.” After which hint there is, I think, but little doubt as to the way in which it should be taken by us.[305] That Plato, Theopompus, and Plutarch, covering a range of nearly five centuries, should each have made use of the conception of a continent beyond the Atlantic, is noteworthy; but it is more naturally accounted for by supposing that all three had in mind the continental hypothesis of land distribution, than by assuming for them an acquaintance with the great western island, America. From this point of view, the result of our search into the geographical knowledge and mythical tales of the ancients is purely negative. We find, indeed, well-developed theories of physical geography, one of which accords remarkably well with the truth; but we also find that these theories rest solely on logical deductions from the mathematical doctrine of the sphere, and on an aesthetic satisfaction with symmetry and analogy. This conclusion could be invalidated were it shown that exploration had already revealed the secrets of the west, and we must now consider this branch of the subject.