NOTE A.--In reference to the fossil human bones from Florida Count L. F. Pourtales says: "The human jaw and other bones, found in Florida by myself in 1848, were not in a coral formation, but in a fresh-water sandstone on the shore of Lake Monroe, associated with fresh-water shells of species still living in the lake, (_Paludina, Ampullaria, etc._) No date can be assigned to the formation of that deposit, at least from present observation."--_American Naturalist_, vol. II., p. 443. NOTE B.--Besides the evidences already enumerated, Col. Charles Whittlesey gives the following: 1. Three skeletons of Indians in a shelter cave near Elyria, O., were found four feet below the surface, resting upon the original floor of the cave, upon which were also charcoal, ashes, and the remains of existing animals; estimated age, two thousand years. 2. Several human skeletons were found in a cave near Louisville, Ky., cemented into a breccia. They were discovered in constructing the reservoir in 1853. 3. A log, worn by the feet of man, was found in the muck bed at High Rock Spring, Saratoga, N. Y., at a depth of nine feet beneath the cave, and estimated by Dr. Henry McGuire to be 5,470 years old. It was discovered in 1866. 4. Mr. Koch claims to have found an arrow head fifteen feet below the skeleton of the _Mastodon Ohioensis_ from the recent alluvium of the Pomme de Terre River, Mo., and now in the British Museum. His statement was, however, contradicted by one of the men who assisted him in exhuming the skeleton. 5. Dr. Holmes, of Charleston, S. C., found pottery at the base of a peat bog, on the banks of the Ashley River, in close connection with the remains of the Mastodon and Megatherium. 6. Col. Whittlesey, in 1838, found fire-hearths in the ancient alluvium of the Ohio, at Portsmouth, O., at a depth of twenty feet, and beneath the works of the Mound-Builders.--_Col. Whittlesey before the American Association, in 1868._ CHAPTER XV. WRITTEN HISTORY.