1. Jackson County.—In 1863 (Canad. Naturalist and Geologist, vol. VIII, p. 399), Alexander Winchell described an elephant tooth (No. 3163), found in this county. This is now in the collection at the University of Michigan, labeled Elephas jacksoni. The writer regards it as belonging to E. columbi. It is the much-worn hindermost tooth of the left side of the lower jaw. There are present 17 plates, and about 7 are missing from the front end. Above the bases of the rear plates are only 5 in a 100–mm. line; on the worn face are 7 plates in this distance. The anterior plates lean backward with respect to the base, while the hinder ones lean forward. The plates are more or less bent between base and apex. The Kalamazoo morainic system crosses the middle of Jackson County, running east and west.
In 1861 (1st Bien. Rep. Geol. Surv. Michigan, p. 132), Professor Winchell mentioned this tooth and stated that it had been found in the northern part of the county while a ditch was being made. The locality is, therefore, north of the moraine referred to above.
INDIANA.
(Map [12].)
1. Terre Haute, Vigo County.—In the State Museum at Indianapolis is a fine lower left molar of E. columbi, labeled as found, in 1896, near Terre Haute, on the farm of Aaron Conover, and presented by Earl Conover. Mr. Herbert C. Anderson, county surveyor of Vigo County, informed the writer that the farm is located in the southwest quarter of section 9, township 12 north, range 9 west. This is 3.5 miles north of Terre Haute. The place is near Wabash River and the deposit is probably outwash from one of the ice-sheets. The depth at which the tooth was found is given as 18 feet. The length from the top of the anterior plate to the base of the hindermost is 380 mm.; width of worn face 100 mm. The hinder plates lean strongly toward the front and there are 6 plates in 100 mm.
2. Monrovia, Morgan County.—The collection of the State Museum at Indianapolis contains the hinder half of what appears to be the lower right last molar. This was presented January 10, 1911, by David Hobson, of Monrovia, Indiana, and is labeled as found 1.5 miles southeast of Monrovia, in a gravel bar in Sycamore Creek. There are present 13 plates, considerably flexed as they rise from base to summit.
According to Leverett’s glacial map of Indiana, Monrovia is situated on the northern edge of the Shelbyville moraine. The tooth seems to have been found in Sycamore Creek, on the moraine or near its southern border, not far from the northern border of the Illinoian drift area. While the possessor of this tooth probably lived during some period of the Wisconsin stage, it is possible that the tooth had been washed out of some deposit of the Illinoian or of some interglacial deposit laid down between the Illinoian and the Wisconsin stages.
3. Windfall, Tipton County.—In the Morrill collection, in the University of Nebraska, Lincoln, there are two teeth, an upper and a lower last molar, secured at Windfall by Professor Erwin H. Barbour. These teeth have been described and illustrated by the writer (36th Ann. Rep. Geol. Surv. Indiana, p. 742, plates XXV, XXVI). Windfall is situated on Wisconsin drift, some miles west of the more or less morainic belt which marks the northwestward continuation of the Union City moraine.
4. Bringhurst, Carroll County.—In the State Museum at Indianapolis is a last molar found some years ago near Bringhurst and presented by Mr. John Flora. There are 27 plates present, an unusual number. The length of the tooth is 320 mm. from the summit of the first to the base of the twenty-sixth. No information was furnished as to the exact place where the tooth was found, nor as to the depth and kind of materials. Bringhurst is situated on Wisconsin drift, and the animal must have lived at some time after the ice retired from the Fowler-Lafayette moraine.