28 G. D. Harris — Tertiary Geology of Maryland. 



No. 1. Sand 4 feet. 



2. Light yellowish sand 30 " 



3. Hard ferruginous sand stratum 8 " 



4. Bluish black efflorescent marl 8 " 



5. Light yellowish and bluish sandy clay 25 " 



6. Compact blue clay 9 " 



It is believed that the lowest member of this section bears 

 to the dark bluish or black clays above Zonef, between Sec- 

 tions 11 and 12 the stratigraphic relation indicated on the map. 



After rounding Little Cove point, No. 6 becomes quite 

 fossiliferous and so also does the basal portion of No. 5. Here 

 the section presented is as follows : 



No. 1. Pleistocene sand and gravel - 0-5 feet. 



2. Light yellowish sand 5 " 



3. Zone g ; light sands .. 3 " 



4. Blue clay 5 " 



5. Fossiliferous sand 1 foot. 



6. Blue clay _ 4 feet. 



7. Fossiliferous sands 1 foot. 



8. Blue clay 3 feet. 



No. 5 contains the following forms all more or less water- 

 worn : 



Pelecypoda. — Pecten madisonius, Area idonea, Cardium laque- 

 atum, Venus mercenaria, Dosinia acetabula, Corbula cuneata. 



Gastropoda. — Terebra simplex?, young, Pleurotoma parva, 

 Nassa peralta, Astyris communis, Natica duplicata, Turritella 

 plebeia. 



No. 3 or Zone g is not very fossiliferous at this particular 

 locality but a few yards farther south is replete with : 



Pelecypoda. — Pecten madisonius, Lucina crenulata, Venus mer- 

 cenaria, small, Cytherea Sayana, Tellina biplicata, Mactra ponde- 

 rosa, Mactra subcuneata, Solen ensiformis. 



Gastropoda. — Actseon ovoides, Terebra simplex, Pleurotoma 

 communis, Nassa integra, Nassa peralta, Turritella plebeia, Pleuro- 

 toma parva, Fulgur coronatum, Ecphora quadricostata, Natica 

 duplicata, Natica heros. 



Section IJf,. — In going southward from Little Cove point, 

 the fossiliferous layers exposed in the cliffs are observed to 

 gradually rise and at Section 14 present the following appear- 

 ance : 



