93 
CHAP. VI. 
ORGANIC REMAINS OF THE UPPER AND LOWER CHALK. 
The organic remains of the chalk strata are very 
numerous ; but, notwithstanding the considerable 
and important additions which modern discoveries 
have made, the fossil productions of these exten- 
sive dejiosits are still but imperfectly known.’ 
The fossils of the French chalk have been de- 
scribed by MM. Cuvier and Brongniart * ; those 
of the English, by Mr. Parkinson t, W. Phillips, 
and others ; and the organic remains of the 
chalk of Yorkshire are admirably figured in Mr. 
John Phillips’s highly interesting geology of tliat 
county.t 
The contents of the Sussex beds will be found 
to differ in some respects from those here men- 
tioned ; while many species of fossils, described by 
♦ Essai siir la Geographic Mineralogique des Environs de Paris, 
Par MM. G. Cuvier et Alex. Brongniart, p. 11. 
•f* Geological Transactions, vol.i. p. 34-4. 
t Illustrations of the Geology of Yorkshire, 4to. 1829. 
Miss Bt nett’s beautiful and scientific “ Catalogue of the Organic 
Remains of Wiltshire” must not be omitted : it contains a list of all the 
species of -the Wiltshire chalk. It is much to be regretted that the 
amiable and highly talented authoress reserved it for private distri- 
hution. 
Mr. Sowerby’s beautiful and faithful representations of the shells of 
the chalk, in his Mineral Conchology, are too well known to require 
mention. 
