295 Bulletin 5 25 



TESTACEOUS FORMATION, &C, 73 



Description of a testaceous formation at Anastasta 

 Island, extracted from notes made on a journey 

 to the southern part of the United States, during 

 the winter of 1822 and 1823. By R. DiETz. 

 [read JUNE 8, 1824.] 



Anastasia Island, opposite St. Augustine, along 

 the coast of East Florida, is about 10 or 12 miles 

 from north to south, and about i>^ miles from east 

 to west, and has, perhaps, not more than 10 or 12 

 feet elevation above the level of the ocean, and is 

 from 2 to 3 miles distance from the shore. 



A considerable portion of the northern, and, 

 perhaps, the substratum of the remaining part of 

 the island, is composed of an aggregate of frag- 

 ments of various shells. 



VOL. IV. — AUGUST, 1824. 10 



[J. A. N. S., Phila., ist Ser., Vol. IV, 1824.] 



