■^k 



VIEW IN LATERAL CANYON OF T^l -, . 



Showing uiconformlty between the pre-Cambrlan Si-t'al schists (Ws) and Ca 



in the Wu-t'ai-shan, Province of Shan-si. 

 54, Carnegie Institution of Washington, ^ 



shale <Cm), n 

 (After Willis, Research in China, Pub No. 

 I. 1, Pt. 1, 1907, Pi. 19, p. 140.) 



