BULL. GEOL. SOC. AM. 



VOL. 27, 1915, PL. 28 



FifjcRE 1. — Contorted Chert, east Shore Seldovia Bay, near Cannery. Photograph by U. S. Grant 





FinnnE 2. — Pseudomonotis-bearing Limestone and Shale in Lower Part of McCarthy 

 Formation on Copper Creek, Nizina Valley. Photograph by F. H. Mofflt 



UPPER TRIASSIC ROCKS, COOK INLET AND NIZINA VALLEY, ALASKA 



