“It will be observed that this mode of finding the position of the ship at sea, which recalls the sending out of the birds from the Ark, is said to have been the custom ‘long ago.’ It would seem therefore, that in the fifth century B.C. other and probably more scientific methods were in use. It would also appear that the navigation of the ocean was even then an ancient institution. “In the time of the Chinese Buddhist pilgrim Fah Hian (about 406 A.D.) there was a regular and evidently old-established trade between India and China and with the islands of the Archipelago. “Fah Hian sailed from Tamalitti, or Tamralipti, at the mouth of the Ganges, in a great merchant ship, and in fourteen days reached Ceylon (Fo-Kwo-ki, Beal., I, lxxi, lxxii.). From thence he sailed in a great ship which carried about two hundred men, and which was navigated by observing the sun, moon and stars. In this ship Fah Hian reached Ye-po-ti (probably Java) in which country heretics and Brahmans flourished, but the law of Buddha was not much known (_Ib._, I, lxxx.). Here the pilgrim embarked for China on board another ship carrying two hundred men, amongst whom were Brahmans. These proposed to treat the sramana as Jonah was treated, and for the same reason, but some of those on board took his part. At length when their provisions were nearly exhausted, they reached China (_Ib._, I, lxxxi., lxxxii.). All these ships appear to have been Indian and not Chinese. “Fah Hian mentions that pirates were numerous in those seas (_Ib._, I, lxxx.), which shows that the commerce must have been considerable” (p. 171). “It seems in the highest degree improbable that this close connection between the Sun and the serpent could have originated, independently, in countries so far apart as China and the West of Africa, or India and Peru. And it seems scarcely possible that, in addition to this, the same forms of worship of these deities, and the same ritual, could have arisen, spontaneously, amongst each of these far distant peoples. The alternative appears to be that the combined worship of the Sun and serpent-gods must have spread from a common centre, by the migration of, or communication with, the people who claimed Solar descent. “So universally was the Naga held sacred, that it would seem to have been the earliest totem of the people who claimed descent from the Sun-god” (p. 183). I have quoted so extensively from Oldham’s fascinating work because the conclusions at which he arrived from a study of the ancient literature of India is confirmed by evidence derived from utterly different sources, not only from India itself but also from other countries. For, scattered throughout the length and breadth of India, are to be found thousands of indications (in traditions, beliefs, customs, social organisation and material relics) that the complete “heliolithic” culture had reached India not later than the beginning of the seventh century B.C.