Carolina; and c 

 the Carolinas is 

 to Maryland an, 



Geology and JSTa&wal Histor;/. 



i Maryland, 98 in number, the percent* 







These facts sustain the inference that 

 >sits of North and South Carolina are of one horizon, 

 )se of Virginia and Maryland are of another or two others. 

 . of the South Carolina species, about 33 per cent (omit- 

 loubtfiil) are re.-ent forms and of the North Carolina, :U) 



Of the 109 Virginia species, 

 )r 15 per cent ; and of the 

 ■ther corroborate the vie 

 •he-ions are sustained though less strikingly, by a revie< 

 isteropod fauna. Mr. Heilprin hence concludes that th 

 deposits belong to a hoi'i/on older than thai of th 

 5, and that the Maryland indicates two horizons of whic 

 r one correspond^ to the Virginian. Finally, the suhd 

 »f the Tertiary of the Atlantic and Gulf border are' tin 



laryian 



Deposits of Sont 



