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memory, it muff have extended beyond thefe bones 
lefs than a century ago. There are feveral regular 
ftrata or layers of ftone, of fome yards thicknefs, 
that run along the cliff, nearly parallel to the horizon 
and to one another. I mention this to obviate an 
objection, that this animal may have been upon the 
furface, and in a feries of years may have funk down 
to where it lay ; which will now appear impofiible, 
at lead; when the flones, (Sc. have had their prefent 
confidence. 
References to the Draught. 
A , By C y the head and bill, not in the fame line or 
range with the reft of the bones. 
a, by A bone, with its proceffes, which I take to be 
limilar to that, which includes the brain in 
fifties. The part between the bone and out- 
lines appeared to be a fmooth membrane ; but 
was fo thin, that in taking up it broke. 
It is evident this is the upper part of the 
head inverted. 
B C the fuperior maxilla intire, and in fome places 
* * covered with the inferior one for four or five 
inches together. Where this happens, the va- 
cuity is filled with matter like the rock in 
which it lays ; and there are large teeth in 
each jaw, at fuch diftances, and fo pofited, 
that thofe in one jaw fill up the vacuities in 
the other, and appear like one continued row, 
the mouth being fhut. 
Where there is only the fuperior maxilla 
remaining, there are no teeth j but the fockets 
Vol. 50. 4 t are 
