13. _Near Saginaw, Saginaw County._—Dr. A. C. Lane has reported (Ann. Rep. Geol. Surv. Michigan for 1901, p. 252) that he had found in the possession of farmers in Tittabawassee Township, Saginaw County, parts of a tusk, said to have come from a ditch near the course of the Parker drain, about 0.25 mile north of the south line of section 20, township 13 north, range 3 east, according to Mr. D. E. Williamson, of Saginaw. Dr. Lane also reported remains of a mastodon, including the lower jaw, found in digging a tile ditch on the “Willis farm.”
15. _Saginaw County._—In October 1910, Mr. Ralph McQuiston sent to the writer photographs of three mastodon teeth found on a farm about 8 miles east of north of Elsie, Clinton County. He has since given this locality as being in the southeast quarter of the southwest quarter of section 4, township 9 north, range 1 east. According to Leverett and Taylor’s glacial map of Michigan, this would be about 6 miles within the old Lake Warren beach-line and in sandy deposits laid down in water. The teeth were found at a depth of 3 feet. It may be that the animal died at that spot after the waters of Lake Warren had retired. If so, it would be interesting to determine the origin of the materials which covered the mastodon. On the other hand, the mastodon remains were possibly deposited there after the withdrawal of Lake Wayne and that the overlying materials were laid down by the water of Lake Warren, for this lake appears to have stood at a higher level than its predecessor. If the latter supposition is correct, mastodons could live not far away from the glacial front.
Further correspondence with Mr. McQuiston makes it appear improbable that the overlying materials were deposited by lake waters. Professor Leverett suggests that the animal had died in an old swale and had afterwards been buried under fine material washed in from the somewhat higher ground in the neighborhood. In that case the mastodon may have lived at any time after the lake waters had retired from the locality.
14. _Alma, Gratiot County._—In Alma College, at Alma, Gratiot County, are some remains of a mastodon, found about 6.5 miles southeast of Alma, on the farm of Mr. Albert Smith. These remains were exhumed under the direction of Professor H. M. MacCurdy, of Alma College (Mich. Acad. Sci., Rep. XXI, p. 119). Various parts of the skull are preserved, one part showing beautifully the air-cells; also a fragment of a tooth, axis, three dorsal vertebræ, a few ribs, and a part of the pelvis. From Mr. Albert Smith it is learned that the remains were found on the southwest quarter of section 17, township 11 north, range 2 west. This, following Leverett and Taylor’s map, would be on the Owosso moraine, which here runs north from Ithaca, Gratiot County. A ditch was being dug through a peat-bog and the bones were met with at a depth of 4 feet or less from the surface. Professor MacCurdy wrote that the bones were lying on a bed of gravelly sand and were covered by a thin layer of mixed sand and vegetation, while over this was about 3 or 4 feet of well-decayed peat. The locality is about 2 miles from the shore-line of the glacial Lake Maumee, as mapped by Leverett and Taylor.