684 



THE ICE AGE IN NORTH AMERICA. 



ing on a stratum of carboniferous limestone, is overlaid by 150 

 feet of loess, making the elevation above the river 200 feet. 

 Near the surface there were found many relics indicating 

 recent interments. But at lower depths, reaching in some 

 cases eleven and a half feet, bits of bone were found. Be- 

 low a depth of five feet there was no evidence that the loess 



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Fig. 191— Section of Long's Hill, Nebraska. The man is pointing to the base of the loess 

 resting Upon 40 feet of till. (Courtesy of Records of the Past. ) 



had been disturbed subsequent to its deposition, since here 

 the characteristic vertical lime tubes and concretions were 

 everywhere present. Moreover the fragments of bones were 

 widely scattered, only five or six fragments being found to a 

 cubic yard, and some of these evidently were water worn. The 

 prize specimen was that of a skull broken, disarticulate and 



