Till. PRIMITIVE MAN OF NEBRASKA 327 



water- worn and scattered through four or more vertical feet of 

 original undisturbed loess, and plainly belong to that formation, 

 as will be*discussed at length in succeeding papers. 



The bones of the lower layer seem synchronous with the loess 

 formation, and antedate the hill itself, while those of the upper 

 layer are younger than the loess and subsequent to the hill. 



The occurrence of the two sets of bones at this spot seems to be 

 purely accidental. 



October 26, 1906. 



Issued and distributed December 22, 1906. 



