﻿NO. 15 



SMITHSONIAN EXPLORATIONS. I92I 



^Z 





Fig. 25. — Contorted and cross bedded phosphate rock, Franklin, Tenn. (Photo- 

 graph by Bassler. ) 



Fig. 26. — Massive limestone with an intercalated coral reef, near Franklin, 

 Teim. (Photograph by Bassler.) 



