Professor C. A. Davis informed the writer that a large number of mastodon bones were found about 1885 by a farmer who lived half a mile west of Riverdale. This was in Seville Township, No. 12 north, range 4 west, apparently in section 31. The discovery was made by the owner of the land, who found a number of teeth of a mastodon attached to the roots of a small elm tree which he pulled out of a swale on his farm. The bones were not more than 18 inches below the surface. Professor Davis regarded it as remarkable that remains of the mastodon should be so near the surface in ponds and swales where peat is growing. 16. _Bancroft, Shiawassee County._—Dr. A. C. Lane (7th Ann. Rep. Geol. Surv. Michigan, 1905, p. 553) reported that some ribs, tusks, teeth, and many bones of a mastodon had been found near Bancroft, at a depth of 4 feet, in marl, above which were muck, marl, and sand. Lane gives the locality as being on the line between sections 36 and 25, township 6 north, range 5 east, but this would be about 12 miles east of Bancroft. The range is probably 3 east. The locality appears to be on the Fowler moraine. 17. _Venice, Shiawassee County._—In the agricultural school at East Lansing is a lower right hindermost molar, catalog No. 3392, which is said to have been found at Venice by Mr. Hiram Johnson. There are also parts of one or two tusks from the same place, probably of mastodon. Venice is just north of the Owosso moraine, and the mastodon must have lived there at a rather late time in the Wisconsin stage. A letter from Mr. Fayette Johnson, of Washington, D. C., son of Mr. Hiram Johnson, informs the writer that he saw the bones taken up about the year 1884. The place was about the center of section 21, township 7 north, range 4 east. This would be apparently on the Owosso moraine. 18. _Fenton, Genesee County._—Alexander Winchell (Amer. Jour. Sci., vol. XXXVIII, 1864, p. 224) reported mastodon remains from this place. No details were given. Fenton is located on the Portland moraine, one of those built up by the Saginaw lobe. 19. _Davison, Genesee County._—In the museum of the Michigan Agricultural School, at East Lansing, Michigan, is a large left femur, found near Davison, Genesee County. It was presented by Mr. A. B. Cullen, but no more exact information was furnished. A comparison of this femur with those of the mastodon and of a specimen of _E. primigenius_ from Siberia indicates that the bone belonged to the American mastodon. The length is 40.5 inches. Davison is situated on the border of an old lake which lay along the front of the ice which built up St. Johns moraine (Taylor, Monogr. LIII, p. 241). At this stage the earliest of the glacial lakes, Lake Maumee, had not yet come into existence; but it must have been long after this time that the mastodon lived in the region about Davison.