OF TILGATE FOREST. 
287 
be [)iirsued in this place, without leading to the 
anticipation of facts hereafter to be examined ; it 
will therefore be more convenient to reserve any 
further observations for the concluding chapter of 
this volume. 
ON THE ANALOGY BETWEEN THE ORGANIC REMAINS 
OF THE TILGATE BEDS AND THOSE OF STONES- 
FIELD, NEAR OXFORD. 
In the course of this enquiry, allusion has been 
made to the fossils of the Stonesfield slate, and 
their general resemblance to those of the Tilgate 
strata : this correspondence in the organic remains 
of deposits, whose geological relations are so en- 
tirely dissimilar, is a fact sufficiently interesting to 
require some attention. 
The Stonesfield limestone is supposed to be- 
long to the inferior beds of the oolite, and has 
long been celebrated for the extraordinary cha- 
racter of its fossils, of which, however, no detailed 
account has yet appeared. 
According to Dr. Kidd *, it contains crabs, birds, 
tortoises, and one or more large quadrupeds ; and 
the Rev. W. Conybeare, in his highly interesting 
memoir on the PJesiosauriis\ ^ mentions, that it also 
encloses the remains of “ an immense saurian ani- 
mal, approaching to the characters of the Monitor, 
and which, from the proportions of many of the 
specimens, cannot have been less than forty feet 
long:” this is the Megalosaurus. 
* Geological Essays, by J. Kidd, M. D. 8vo. 1815. p. 38. 
f Geological Transactions, vol. v. p. 592. 
