construction the marks of a much greater antiquity than those of Europe. The geologist who sets himself to discover similar types on the eastern side of the Atlantic would have to seek for them among the deposits of the later Tertiaries. North America seems to be still passing through its later Tertiary ages; and it appears to be a consequence of this curious transposition, that while in Europe the mastodonic period is removed by two great geologic eras from the present time, it is removed from it in America by only one. Even in America, however, that period lies far beyond the reach of human tradition,--a fact borne out by the pseudo-traditions retailed by the aborigines regarding the mastodon. By none of at least the higher naturalists has there been a doubt entertained respecting its herbivorous character; and the discovery of late years of the stomach of an individual charged with decayed herbage and fragments of the succulent branches of trees, some of them of existing species, has demonstrated the solidity of the reasonings founded on its general structure and aspect. The pseudo-traditions, however, represent it in every instance as a carnivorous tyrant, that, had it not been itself destroyed, would have destroyed all the other animals its contemporaries. It is said by the red men of Virginia, "that a troop of these tremendous quadrupeds made fearful havoc for some time among the deer, the buffaloes, and all the other animals created for the use of the Indians, and spread desolation far and wide. At last '_the Mighty Man above_' seized his thunder and killed them all, with the exception of the largest of the males, who presenting his head to the thunderbolts, shook them off as they fell; but, being wounded in the side, he betook himself to flight towards the great lakes, where he still resides at the present day."