discovered at Breingues , in the Department Du Lot. SOS 
result, either of the superstition of the first inhabitants of the 
country who discovered them, or of the amusement of herdsmen, 
or some other cause of this description.— Bullet. Univers. Nov. 
1 825 . 
Art. XI. — Observations regarding the Position of the Fossil 
Megalosaurus and Didelphis or Opossum at Stonesfield. 
TPhE bones of the Megalosaurus occur at Stonesfield, in 
strata of an oolitic limestone-slate, which is wrought for roofing 
houses ; and in the same quarries, which abound in organic re- 
mains, there have been found several portions of a jaw, which 
undoubtedly belong to a small insectivorous animal of the or- 
der Carnivora, which has been by some referred to the ge- 
nus Didelphis. There occur in the same strata, bones of 
birds and reptiles, teeth of fishes, elytra of insects, and vestiges of 
marine and terrestrial plants. Notwithstanding this association 
of fossils, hitherto regarded as foreign to the deposits beneath 
the Chalk Formation, English geologists have been led to 
think that the Stonesfield slate forms part of the middle oolite 
system ; and it is very remarkable, that at Cuckfield, in Sus- 
sex (the only place in which there has hitherto been disco- 
vered a great number of fossils similar to those of Stonesfield), 
the strata which contain them form part of the formation of the 
iron-sand, inferior to the chalk, which is much newer than the 
middle oolite deposits. The following, according to Mr Buck- 
land, is a list of the fossils, which are found equally in the 
limestone-slate of Stonesfield and the iron-sand of Tilgate Fo- 
rest : Bones of birds ; of the Megalosaurus ; of the Plesio- 
saurus ; scales, teeth and bones of a crocodile ; humerus and 
ribs of cetacea ; scales of tortoises ; the same variety of shark’s 
teeth (Glossopetra) ; spines of balistae ; palates, teeth and scales 
of various fishes ; fossil wood, impressions of ferns and reeds; 
some fragments converted into charcoal, and some rolled pebbles 
of quartz. 
The almost perfect resemblance which the organic remains of 
the two localities present, has induced Professor Buckland to 
say, that the earth was undoubtedly placed under nearly the 
u 2 
