130 
ORGANIC REMAINS. 
The cornbrasli limestone, slaty stone of Brandsby, Cave oolite or gray 
limestone, and inferior oolite sand or dogger, which together represent in 
Yorkshire the oolitic formation of Bath, contain a numerous suite of 
organic remains, agreeing very closely with those obtained from the 
same strata in other parts of England. Many of these fossils have been 
observed by Mr. Murchison in the analogous strata of Sutherland, and by 
Mr. De la Beche and other geologists, in the oolites of Normandy and 
Switzerland. In the vicinity of Bath, where this formation is the most 
distinctly exposed, the organic contents of the several strata are ex- 
tremely similar ; and, notwithstanding the valuable labours of Smith, 
Sowerby, Conybeare, Miller, Ac. their zoological characters require 
further elucidation. The fossils of the middle or great oolite, in particu- 
lar, are very imperfectly known ; and the term “ forest marble” has been 
(I think) applied to very dissimilar members of the series. In the midland 
counties, the fuller’s-earth rock of Mr. Smith does by no means furnish a 
constant or well-marked line of distinction between the middle, great, or 
Bath oolite, and the inferior oolite ; and I am decidedly of opinion, that 
in the northern part of Northamptonshire, and throughout Rutland and 
Lincolnshire, there is but one thick oolitic rock beneath the cornbrasli, 
resting upon brown sandstone which immediately covers the upper lias 
shale. There is no reason to doubt the identity of the oolites of Lincoln, 
Cave, Sancton, Westow, and the vicinity of Brandsby and Coxwold; 
and though we cannot directly trace the connexion across the moorlands, 
the gray limestone of Sneaton, Hawsker, Cloughton, and White Nab, 
may be added to the synonyms. 
It has been already remarked that the dogger or inferior oolite sand, 
is a bed of extremely irregular occurrence and varying character, botli on 
the coast and in the fronts of the Cleveland hills ; and it cannot, without 
difficulty, be traced southward in Yorkshire beyond the Derwent. On 
the hill at Craike, it is a brown sandstone, remarkably similar to that 
which covers the lias shale near Lincoln, Belvoir Castle, and Uppingham, 
and no doubt contemporaneous with it. The variable oolitic limestone 
of Cloughton and Cave is most certainly equasval with the much thicker 
and finer oolites of Lincolnshire ; and the shelly slaty limestone of 
