...d Clarke found in their wild and perilous expedition. On the third, among many other striking matters, was the head of a mammoth, or, as Cuvier calls it, a mastodon, containing the only os frontis, Mr. Jefferson tells me, that has yet been found. On the fourth side, in odd union with a fine painting of the Repentance of Saint Peter, is an Indian map on leather, of the southern waters of the Missouri, and a...