PLATE IX. 
RESEARCH IN CHINA. 

in Cambro-Ordovician limestone, looking upstream 
in canyon 
View 
-hién, southern Shen-si, atlas sheet d 6. 
Near Choén-p’in 
across the structure of 
euts 
river 
in which the 
manner 
y 
showing 
toward a more open valley developed in overlying shales ; 
the region. 
