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



Fig. 4. — Map of the Florida Coast, from the 

 mouth of St. Mary's River to the mouth 

 of St. John's River. (From U. S. Coast 

 Surv. Chart, No. 158.) 



Pig 5 — Map of Florida Coast in vi- 

 cinity of St. Augustine. (From 

 U. 8. Coast Surv. Chart, No. 

 I59-) 



