540 



PEOCEEDINGS OF THE ACADEMY OF 



[1887. 



Clays 

 with fossils 



Sands. 



Clays. 

 Marls. 



Sands. 



691 ft. to 722 ft. = 

 722 ft. to 806 ft. = 



806 ft. to 866 ft. = 



( %m ft. to 939 ft. = 

 \ 939 ft. to 999 ft. = 



( 



31 ft. 

 84 ft. 



60 ft. 



73 ft. 

 60 ft. 



Chocolate Clay. 

 Fossiliferous Clays and 

 sands ; shells and sharks 

 teeth. 



Non- fossiliferous sands, 

 alternating blackish, 

 whitish, and reddish 

 brownin color. 



Dark Marls and Clays. 

 Green marls (various 

 shades) and black marls. 



f 999 ft. to 1119 ft. = 120 ft. Sands mostly yellowish 



full of bar- 



Water 



J119ft.toll21ft. 



2 ft. 



green and 



nacles. 



White Sands. 



flowing to surface. 



Total 1121ft. 



Prof Angelo Heilprin has kindly and very carefully examined 

 and identified all the specimens of fossils. The sj^eaker has placed to 

 the right of each in the following list, the range along the Atlantic 

 Seaboard where out-crops containing the same fossils have previously 

 been found the names of the formation being those established by 

 Prof. Heilprin in his Tertiary Geology, in which the formation in 

 in the state of Maryland is divided into an older and a newer 

 group : 



' Marylandian, Older Maryland group. 



= Lower Atlantic Miocene. 

 Virginian, Newer Maryland group and deposits of 

 Miocene \ Virginia. 



= Middle Atlantic Miocene. 

 Carolinian, Deposits of North and South Carolina. 

 ^= Upper Atlantic Miocene. 

 Anomia (probably ephippium). N. C. S. C. 



Area centenaria, 



Area subrostrata, 



Area (idonea?) 



Area {lienosa'^) 



Artemis (acetabulum?) 



Astarte eompsonema, 



Astarte obruta, 



Astarte perplana, 



Astarte Thomasii, 



Cardita graniUata, 



Cardita arata, 



Crassatella melina, 



Corbula idonea, 



Corbula elevata, 



Cardium (probably laqueatun), 



N. J. Newer Md., Va., & S. C. 



Older Md. 



Newer Md., Va., N. C. 



Newer & Older Md., Va., N. C. 

 N.J. 



Newer Md. 



NcAver INId. 



N.J. 



Newer Md., Va., N. C, S. C. 



N. J. Newer Md., Va., N.C., S.C. 



N. J. Older Md., Va., N. C. 



Newer and Older Md. 



N. J. Older Md. 



N. J. Va. 



