48 
below Nympsfield, which cuts through the escarpment between 
the two quarries. A mile beyond are the quarries near Uley 
Bury, adjoining the farm yard on Uley hill. There is here a 
thin ferruginous bed running through the quarry, with from 20 
to 30 feet of freestone beneath, resting upon the cephalopoda 
bed, and which, I believe, are also anterior to the Pisolite. 
In proximity to the ferruginous bed the freestone is very 
Pisolitic; the grains are large and flat, and there is much 
probability that this bed is the termination of the Pisolitic 
beds of the Cheltenham area. : 
I think we can see in these sections evidence of the gradual 
change that took place in the deposits of the Oolitic sea. 
During the period of the formation of the sands lime appears 
to have been nearly absent, but with the cephalopoda bed 
calcareous matter began to be deposited. The succeeding beds 
indicate an increasing amount of lime; they consist of sandy 
ferruginous rocks, but each succeeding bed appears to be less 
sandy and more calcareous until the formation becomes an 
Oolitic Limestone. In the lowest bed the Oolitic structure caa 
scarcely be observed, but as the rocks become more calcareous, 
the Oolitic granules appear; they are, however, small and 
sparsely distributed. 
The period of the deposition of these rocks came to an end, 
and a pause ensued of considerable duration, as shown in the 
great dissimilarity between them and those of the overlying 
Pisolite, in the well defined line separating the two formations, 
in the circumstance of the upper surface of the basement beds 
having been worn smooth and become covered with oysters, indi- 
cating a change of level and probable denudation, and in the sterile 
character of the basement beds, and the abundance of organic 
remains which appeared with the ferruginous Pisolitic deposits. 
The last-mentioned circumstance deserves more than a passing 
remark. The lower beds are usually nearly destitute of fossils, 
the few that appear consist of minute Gasteropods, with an 
occasional Lima much worn; but there is a mass of shelly 
detritus with small fragments of Crinoidea, Echinide, &. In 
the Pisolitic beds the fossils are abundant, and usually well 
