RESEARCH IN CHINA. PLATE XX. 

On the T’ai-shan-ho 4 miles southwest of Shi-pan-k’é6u, in the district of Wu-t’ai-hién, atlas sheet CI. View showing massive 
character of Cambro-Ordovician limestone, in broad syncline east of Yau-t’ou coal field. View also illustrates abrupt walls 
of recent canyons where they are cut in heavy limestone. 
