28 



PROCEEDINGS OF THE GEOLOGICAL SOCIETY. 



[Apr. 6, 



Pholadomya simplex, Phil. 



- — - nana, Phil. 



Homomya crassiuscula, Lye. Q" Mor. 



Pleuroinya? recurva, Phil. sp. 



Groniornya V-scripta, Sow. sp. 



Myacites calceiformis, Phil. 



■ modica, Bean, MS. 



decurtatus, Phil. sp. 



securiformis, Phil. sp. 



Gresslya peregrina, Phil. sp. 

 Anatina undulata, Sow. 



plicatella, ? Lye. 8f Mor. 



parvula, Bean. 



Gastrochama tortuosa, Sow. 

 Pholas costellata, Sow. 



Bbynchonella varians, ? Schloth. 

 Terebratula obovata, Sow. 



lagenalis, Schloth. 



intermedia, Sow. 



Serpula intestinalis, Phil. 



Serpula squamosa, Phil. 

 clava, Bean. 



Glypksea rostrata ?, Phil. 

 Birdii*, Bean. 



Pseudodiadema pentagonum, M' Coy. 



vagans, Phil. 



Hemipedina Woodwardii, Wright. 

 Echinobrissus clunicularis, Lhwyd. 



orbicularis, Phil. 



Holectypus depressus, Lamk. 



Astrcea? Dunnii, Bean. 

 Caryopbyllia, sp. 



Tubipora? acervalis, Bean. 



incrustans, Bean. 



Spiropora straminea, Phil. 

 Cellaria Smithii, Phil. 

 Flustra, sp. 



Spongia floriceps, Phil. 

 papillosa, Bean. 



No. 2, the first bed beneath the Cornbrash, is a grey laminated sand- 

 stone with carbonaceons markings and ferruginous stains. It ex- 

 hibits much cross-bedding, is intersected by iron-stone bands, and 

 forms a bluff in the bay. This bed is nearly horizontal for a con- 

 siderable distance, and is covered with debris from the cliff. It mea- 

 sures from 30 to 40 feet, and is apparently non-fossiliferous. 



No. 3. A grey siliceous rock which forms the base of bed No. 2 ; it 

 weathers into irregular nodules, and forms a prominent band in the 

 cliff. It measures 4 feet, and is apparently non-fossiliferous. 



No. 4. Grey clays, which are indurated, and break up into cuboidal 

 fragments. 6 feet. 



No. 5. A grey, laminated, ferruginous sand-rock, which readily 

 disintegrates when exposed to the atmosphere. It presents numerous 

 ochraceous and brownish stains. No fossils. 8 feet. 



No. 6. A brown ferruginous sand-rock, very irregularly bedded, 

 and richly charged with the peroxide of iron : in some parts it is 

 pisolitic. This bed forms a good limit-line in the section, from its 

 hard ferruginous character. It measures only about 2 feet. 



No. 7. A whitish sandstone, with an irregular waving lamination. 

 It contains numerous carbonaceous laminae in its upper portion, with 

 the remains of the stems of plants, some of considerable length. It 

 becomes waved and shaly beneath, and exhibits a very irregular section 

 below, where it passes into the next bed. It measures about 4 feet. 



No. 8. A yellowish-grey, regular-bedded sandstone, which pro- 

 j ects on the strand to high- water mark. This rock exhibits numerous 

 carbonaceous seams, in a fine grey shale, with fragments of stems 

 in its lower layers. 9 feet. 



No. 9. Grey sandy shales with interstratified layers of sandstone, 

 waved and irregular in the upper and under strata. 10 feet. 



The beds above-described, from No. 2 to No. 9 inclusive, belong 

 to the upper shales and sandstones. The bed which follows is the 



* These Cmstacea require re-examination. 



