RESEARCH IN CHINA, PLATE XXXIill. 

A. Pass in the Wu-t’ai-shan, 3 miles southwest of Ts’a-pu, atlas sheet C I, altitude 6,500 feet. Level profile in foreground is a surface of 
soil believed to represent a valley level of the T’ang-hién stage. Beyond are summits of the Wu-tai-shan which are 2,000 to 3,500 feet 
higher. 
B. View taken half a mile north of the pass, A, showing character of residual material exposed in gulches now developing in the slopes in 
consequence of general deforestation of the region within a century and a half. 
