﻿NO. 7 



SMITHSONIAN EXPLORATIONS, I926 



171 



Fig. 171. — Excavation trench exposing vertical section near spot where 

 was found human skull shown in figure 170. The undulating contact plane 

 is here plainly seen. 



Fig. 172. — Section of the deposits near spot where was found human skull 

 shown in figure 170, showing the uneven bedding-plane between the lighter- 

 colored fossil-bearing deposit below and the later deposits above. 



12 



