[ 7§9 ] 
a piece of the os innominatum , to which it had been 
articulated or joined. This, with what has been be- 
fore remarked, will fufficiently prove this to have been 
an animal of the quadruped, and probably, from 
the fhape of the cranium peculiar to fifhes, of the 
amphibious kind. At the fame time many pieces of 
the cofta or ribs, as broke and crufhed up again ft 
the vertebra, were plainly vifible. The cavities of all 
the bones were filled with a fubftance, which appear- 
ed the fame as the rock itfelfj and the fubftance on 
each fide the vertebra , as they laid, was a mixture 
of fparry concreted matter with that of the rock it- 
felf, which is a blackifh flate. The animal, when 
living, muft have been at leaft 12 or 14 feet long. 
And the dimenfions of the whole, or particular parts 
of the fkeleton, may be meafured from the fcale an- 
nexed thereto. 
This fkeleton lay about fix yards from the foot 
of the cliff, which is about fixty yards in perpen- 
dicular height, and muft have been covered by it 
probably not much more than a century ago. The 
cliff there is compofed of various ftrata , beginning 
from the top, of earth, clay, marie, ftones both hard 
and foft, of various thickneffes, and intermixed with 
each other, till it comes down to the black flate or 
alum rock, and about 10 or 12 feet deep in this 
rock, this fkeleton laid horizontally, and exactly as 
defigned. The probability, that this cliff has formerly 
covered this animal, and extended much more into the 
fea, is not in the leaft doubted of by thole that know 
it. The various ftrata , of which it is compofed, are dai- 
ly mouldering and falling down ; and the bottom, be- 
ing the flaty alum rock, is alfo daily beat, wafhed, and 
wore 
