17. _South Bloomfield, Pickaway County._—In 1834 (Amer. Jour. Sci., ser. 1, vol. XXV, p. 256), in an unsigned article, S. P. Hildreth reported the discovery of mastodon teeth and ribs in an excavation for a culvert in a small stream, a mile east of Bloomfield, now called South Bloomfield, where a canal was being constructed. The teeth were in a fine state of preservation. At the same place was found the tooth of an elephant. These remains are said to have been embedded in a black boggy earth. 18. _Circleville, Pickaway County._—In 1820 (Amer. Jour. Sci., vol. II, p. 245), Caleb Atwater stated that a large thigh bone of a mastodon had a short time before been found near the town in digging a mill-race. Here again there must be doubt regarding the identification of the animal. 19. _Pickaway Plains, Pickaway County._—This name is given to a level tract lying about 5 miles southwest of Circleville and east of Scioto River. In the article cited above, Caleb Atwater stated that he had 2 teeth of a mastodon, one of which had been found in a small rivulet near the “Pickaway Plains.” This tooth is illustrated by figures 1 and 2 B, of plate II, of the paper cited. It is evidently a tooth of _Mammut americanum_. The locality would be not far from the broad terminal Wisconsin moraine. 20. _Salt Creek Township, Pickaway County._—The writer just quoted reported that the other mastodon tooth which he owned had been found in the bed of Salt Creek, 22 feet 9 inches below the surface. This tooth is figured on plate II of Atwater’s paper above cited. 21. _Shadeville, Franklin County._—In the collection of the University of Ohio, the writer has seen a tooth of a mastodon which was found at Shadeville. This place is on Scioto River, a few miles below Columbus. It is probably of Late Wisconsin age. 51. _Granville, Licking County._—In 1873 (Amer. Jour. Sci., ser. 3, vol. V, p. 79), L. E. Hicks reported that he had examined the left side of the pelvis of a mastodon found in the bank of Raccoon Creek, near Granville, along the route of the Atlantic and Lake Erie Railway. This place is on the west border of the Grand River moraine. 22. _Mount Gilead, Morrow County._—In Ward’s Natural History Establishment, at Rochester, New York, the writer has seen an upper left third molar of a mastodon, labeled as having been found at this place. No details accompanied the specimen. The tooth is 158 mm. long and 95 mm. wide, and has a large pulp-cavity. Mount Gilead is on the moraine which forms the eastern limb of the Scioto lobe. The tooth may be with safety regarded as of Late Wisconsin age. 23. _Harper, Logan County._—In Earlham College, Richmond, Indiana, are 2 molars of a mastodon, the lower second and the third, which were found somewhere in the vicinity of Harper.