34 FOSSIL MASTODON AND MAMMOTH REMAINS. 



"These finds are interesting in that it makes it reasonably certain 

 that these huge proboscidians roamed over these counties during 

 the late Wisconsin or even during post-glacial times." 



(Iowa Geological Survey, Vol. IX, pp. 210211.) 



Raccoon ri ver. The femur of a mammoth in good state of 

 preservation was taken from a sandbar of Raccoon river in Polk 

 county. Belongs to the Museum of Drake University. 



(Reported by Prof. L. S. Ross, Drake University ) 



POTTAWATTAMIE COUNTY. 



The bones of an -elephant are reported to have been found on 

 section thirty-four, apparently in the loess. 



(Iowa Geological Survey (Udden), Vol. XI, p. 260.) 



POWESHIEK COUNTY. 



Grinnell. "About the year 1884, in excavating for a cellar at 

 the corner of Main street and Fourth avenue, a tusk of a mam- 

 moth, together with a number of molar teeth and some fragments 

 of other bones, were uncovered. These remains are now in the 

 museum of Iowa College. Excavations in this same vicinity at an 

 earlier date had exposed fragments of undoubtedly the same ani- 

 mal. This last fall, in the excavation for another cellar, other 

 fragments were discovered, all, however, in a state beyond preser 

 vation, and mere small pieces. All the pieces found evidently be- 

 longed to a single individual. The geological formation in which 

 they occur is the loess. As I remember, the tusk was at a depth 

 of about six feet below the surface. The tusk is about seven feet 

 long and is in a fair state of preservation. The molar teeth are 

 also well preserved. The other pieces are so small that I do not 

 feel able to guess at their original location in the skeleton. 



(Reported by Prof. W. H. Norris, Iowa College.) 



