32 1 



NKUKASKA (i ROLOGICA L STJRVH1 



Fig. 'A. Skull No. 6. Nebraska Man, side view, showing thick protruding 

 superciliary ridges, retreating frontal without eminences, parietal, interparietal 

 (os incae. os wormianum), occipital and a portion of the temporal hone with 

 mastoid process and external auditory meatus. One-half natural .size; right 

 side reversed to face left. 



Specimen No. 6-1-11-06. The Robert F. Gilder collection, State Museun. 



Negative No. 10.5-1-1 1-06. Hon. Charles II. Morrill's collection of geological 

 photographs. 



