18 FOSSIL MASTODON AND MAilMOTH RE>LAJXS. 



Rock Island. — In the excavations which were made on the 

 slope of the bluffs between Nineteenth and Twentieth streets in 

 Eock Island in 1897, Dr. J. A. Udden found a carpal bone of an 

 elephant. It was cuboid in form and measured some three or 

 four inches in diameter. It was found on the surface of the ground 

 in an excavation which was near the contact of the loess and the 

 boulder clay. 



Rural tomisbip. — A well preserved tooth of a mastodon was 

 found in 1900 in a creek in the west hah of section nineteen, town- 

 ship sixteen north, range one west (Eural township) . The find 

 was made bj ilr. A. Dhuyretter, after a heavy rain which caused 

 high water in the creek. There are reports of other large bones 

 having been found in the same creek. The drift in this township 

 in places rests on pre-glacial gTavels, consisting largely of chert. 

 The tooth was secured for the collection at AugTistana College. 



(The above four instances tvere reported by Dr. J. A. Udden.) 



SANGAMON COUNTY. 



Uliopolis and yiantic. — In 1870, between Uliopolis and Xian- 

 tic, near the east line of the county, the jaws of a mastodon, -nlth 

 teeth intact, both tusks, and several of the large bones were found 

 beneath a black mucky surface soil, four feet in depth. These 

 bones, together with some buffalo, elk, and deer, were imbedded in 

 quicksand, which probably once formed the bottom of a pool of 

 water to which these animals had resorted. The fossils now be- 

 long to the State Cabinet. 



(Illinois Geological Surrey, Vol. VIII. p. 23.) 



The Xiantic mastodon was found on the farm of \s . F. ( 'orell. 

 in a wet, spongy piece of ground located in a swale or depression 

 of the surface that had evidently once been a pond and had been 

 fiUedup by the wash from the surrounding highlajid until it formed 

 a morass or quagmire in dry weather. The bones were about four 

 feet below the surface and partly imbedded in light gray quick- 



