Ill 
ORGANIC REMAINS. 
The Kelloways rock, seldom exposed in a satisfactory manner in 
the south of England, and either deficient or concealed beneath the 
Oxford clay from Wiltshire northward to the Humber, would perhaps 
never have been recognised in Yorkshire without attention to its highly 
characteristic fossils. In the winters of 1820 and 1821, Mr. Smith 
collected some specimens of ammonites calloviensis, and a. Kcenigi, 
from the north cliff of Scarborough ; which, the moment I saw them, 
convinced me that he had discovered the Kelloways rock in Yorkshire. 
Subsequent investigation, by proving that the rock which had furnished 
these “ silent witnesses,” occupied, relatively to other strata above and 
below it, exactly the place of the Kelloways stone, removed all doubt 
from Mr. Smith’s mind, and enabled him to demonstrate that, amidst 
the acknowledged anomalies of the lower oolitic series on this coast, the 
lines of geological agreement may be securely drawn, to unite them 
with their types in the midland and southern counties. His inferences on 
the subject, like many other of his valuable observations, have now 
become the common property of geologists, without the intervention of 
any publication by himself, which might remind those who profit by his 
labours of the praise that is due to the disinterested liberality of his 
communications. 
Of sixty species enumerated above, one-half the number occur like- 
wise in other strata on the coast of Yorkshire; twenty-six of these have 
been seen in the superior strata of the coralline oolite formation ; twelve 
exist in inferior rocks which belong the Bath oolitic series, and at least 
eight are diffused alike through the strata above and below it. These 
are dicotyledonous wood, mya literata, mya calceiformis, trigonia cia- 
vellata, modiola cuneata, pecten lens, perna quadrata, turritella muricata. 
Of the thirty species which remain, future researches may prove a con- 
siderable portion to be characteristic of this remarkable rock, but at 
present I shall content myself with pointing out those which my own 
experience in Yorkshire has taught me to confide in, and which, there- 
fore, it may be hoped, will not mislead others. These are the ammonites 
generally, but ammonites calloviensis, and a. Kcenigi, especially, (for that 
which Mr. Sowerby figures from the lias in connexion with the Kel- 
