MISSISSIPPI.
(Map [28].)
1. Natchez, Adams County.—James Hall, in 1846 (Proc. Bost. Soc. Nat. Hist., vol. II, p. 168; Jour. Bost. Soc. Nat. Hist., vol. V, p. 380), announced that remains of this animal had been found in the neighborhood of Natchez. The exact locality is unknown and likewise the conditions under which the specimens were discovered. This species is not included by Leidy in his list of fossil mammals found in Pleistocene deposits in Mississippi up to 1854 (Wailles, Agri. Geol. Mississippi, p. 196).
A list of the species found in the vicinity of Natchez is presented on page [392].
TENNESSEE.
1. Memphis, Shelby County.—In 1850, Dr. Jeffries Wyman reported (Proc. Bost. Soc. Nat. Hist., vol. III, p. 281) that a part of a lower jaw of Castoroides had been found at Memphis. With it were a toe-bone of Megalonyx, a tooth of a young mastodon, and a part of the lower jaw of a beaver. It was thought that these remains had been buried in the deposits laid down by Mississippi River. It is to be regretted that the locality and the height above the river were not more exactly specified. The specimen of Castoroides, a right ramus of the lower jaw, is now in the Academy of Natural Sciences of Philadelphia.
ON THE PLEISTOCENE GEOLOGY OF NORTH AMERICA AND ITS RELATION TO ITS FOSSIL VERTEBRATES.
ONTARIO.
For a knowledge of the Pleistocene of Canada, the student ought first to read Dr. J. W. Dawson’s “Canadian Ice Age,” published in 1894. In this will be found references to the earlier literature of the subject. For the results of more recent studies the reports of the Canadian Geological Survey are to be consulted, as well as papers published in the scientific journals. For the more important of these papers the reader may consult the list published by Dr. H. L. Fairchild in 1918 (Bull. Geol. Soc. Amer., vol. XXIX, pp. 229).