﻿1851.] 



MACKIE ON THE FOLKESTONE BONE BED. 



261 



immediately recognized as the ordinary species of the Chalk ; the 

 same also being the case with the Brick-earth and the clayey portions 

 of the Drift. 



Mr. Rupert Jones, who at my request examined my prepared 

 " slides," as well as a small quantity of the marl and brick-earth, has 

 kindly furnished me with the following lists. 



From the Calcareous Marl of the Bone-bed : — 



Verneuilina tricarinata. Prismatic fragments of Inoceramus. 



Textularia globosa, trochus, and others. Fragments of Echinodermata. 



Polymorphina ? Ossicles of Apiocrinites. 



Bulimina variabilis and another. Valves of Cytherella ovata and C. trun- 

 Rosalina. cata. 



Globigerina cretacea. Bairdia subdeltoidea and B. Har- 



Cristellaria rotulata and another. risiana. 



Rotalia globosa. Cythere Hilseana (? derived from 



Nodosaria. Chalk-marl). 

 Single cells, ovoidal and globular, = Oo- 



linae ? and portions of otber Forami- 



nifera. 



From the Brick-earth of Gambrill's Pit, \ mile N.W. of the Bayle : — 



Rotaliae, Rosalinae, and single ovoidal Helix, 

 cells. Pupa. 



In the Drift of Folkestone Hill, Chalk-organisms are plentiful. 



Two excavations on the West Cliff, one for Mr. Craxford's House 

 (see Plan, fig. 1, a), the other for the Town-sewer on the Bayle (see 

 Plan, fig. 1, e), have afforded me all my present collection of bones 

 and shells from this deposit. 



List of the Organic Remains from the " Bone Bed."" 



Bones and Horns. Megaceros Hibernicus. 



Elephas primigenius. Equus. 



Hippopotamus major. U Y*™ s P elsea ' 



Bos primigenius. ~ 



urus. SHELLS. 



longifrons. Helix nemoralis. 



Cervus elephas. concinna. 



Prof. Owen kindly inspected and determined a large collection of 

 the bones exhibited to the Society. The list comprises also some 

 other specimens determined by H. Turner, jun., Esq. 



The Drift and Brick-earth. — The probable relation of the mam- 

 maliferous deposit above-described with the Drift was suggested to 

 me by Sir Roderick I. Murchison, — the occurrence of- angular flints 

 being singularly characteristic in both cases, to which fact the follow- 

 ing example, fig. 4, one out of the many that could be given, has 

 especial reference. 



The sections of Drift and Brick-earth everywhere in the neighbour- 

 hood and at every elevation from 40 to 570 feet above the sea present 

 this peculiar feature. 



I would briefly observe that at Mr. Gambrill's Brick-Pit, at the 

 back of Sandfield Villas, on the west side of the valley and inland of 

 the Bone-bed, there is a thickness of 15 feet of clay, through which 



