PLATE XLV. 
RESEARCH IN CHINA. 
mee 

General view up valley of P’ing-li river, showing acute profiles of mature 
A. Three miles S. E. of P’ing-li-hién, Shen-si, atlas sheet c 5. 
Stream is sunk in canyon whose banks present overlapping profiles which hide it; one may detect a former valley level 
topography, 
extending from the point of view, altitude 2,700 feet, far into the distance. 
View in a valley of the Sin-t’an shale, looking north to a mountain range of 
Half a mile south of Wa-tzi-p’ing, Shen-si, atlas sheet d 6, 
Old valley level represented in long ridge. 
the Ki-sin-ling limestone, 
