RESEARCH IN CHINA. PLATE XLVII. 

B 
A. Pass of Ki-sin-ling, atlas sheet d 6, the junction point of three provinces, Shen-si, Hu-pei and Ssi-ch’uan. View eastward up headwaters 
of the Nan-kiang, in synclinal valley on Sin-UVan shale overlying Ki-sin-ling limestone. The stream in this valley formerly flowed to the 
right and was tributary to the Yang-tzi by way of the Ta-ning-ho; it now turns to the left of the view and passes through the limestone 
wall in the gorge shown in Plate XLVITII. 

B. Two miles north of Pa-ho, Ssi-ch’uan, atlas sheet d 7, View up canyon of Ta-ning-ho, showing the characteristic cliffs of Wu-shan 
limestone surmounted by older topographic forms. Terraces high above the river in the distance probably represent a level at which the 
river widened its valley, but may be occasioned by ledges of limestone overlaid by softer strata. 
