302 MINERALOGY OF THE SOUTH OP ENGLAND. 



NAMES GIVEN BY LAMARCK. LINNJEAN NAMES. 



Tail of the Sting Ray. 



Scales of fish. 



Vertebrae of various species 



of fish. 

 Cancer, above 20 species of 



crabs. 



Gammarus, or lob- 

 ster. 



Crangon, or prawn. 



Wood, often pierced by the 



Terredo navalis, and filled 



with pyrites or calcarious 



spar. 



Fruits, branches, excrescen- 

 ces, ligneous seed vessels, 

 and berries impregnated 

 with pyrites. 



These fossil remains very nearly resemble those found 

 in the lower marine formation in the basin of Paris, a 

 point of agreement of great importance, as it leads us to 

 the probable inference, that the lower marine formation 

 of the south of England belongs to the same deposite. 

 This inference is strengthened, when we compare toge- 

 ther the minerals of the different beds in the English and 

 French formations. 



Thus the plastic clay in the Paris basin agrees in most 

 of its external characters with that found in the Isle of 

 Wight and London basins; and further, both agree iri 

 the purer clays being destitute of organic remains, whilst 

 the upper contains fossil cythera and turritellas. A spe- 

 cies of coal also occurs in the lower strata of the Paris 



