A Contribution to the Geologic History of the Floridian Plateau. 143 



Fig. 4. — Map of the Florida Coast, from the Fig. 5. — Map of Florida Coast in vi- 



mouth of St. Mary's River to the mouth cinity of St. Augustine. (From 



of St. John's River. (From U. S. Coast U. S. Coast Surv. Chart, No. 



Surv. Chart, No. 158.) J59-) 



