58 
same human bones whether by deficiency or excess of parts. 
The skull would attract attention at once by its very peculiar 
shape, which all seemed to agree in calling helmet-shaped ; 
if however the prominent ridges which give it this appear- 
ance were left out of consideration, it would be found to be 
well formed and fitted to receive a well-developed brain. 
The front was indeed singular; for the orbits, instead of 
being excavated as it were out of the regular dome of the 
skull as in man, were outstanding, and that to such a degree 
that a perpendicular section which would remove them 
entire would scarcely lay open the cavity of the skull. It 
would be seen however 'that they formed perfect chambers, 
.well walled in on all sides, showing that great care had 
been taken to protect the organs of sight. He pointed out 
the great depth and extent of the temporal fossae, and 
remarked that they had something of the character observable 
in the Felinse, the temporal muscles were very large and 
were so much expanded over the sides of the skull that they 
went completely up to the middle line. These large tem- 
poral muscles, which close the jaws with a powerful snapping 
action, had to do, he said, with the very strong and large 
canine teeth, which would be capable of exerting great force 
in tearing anything on which the animal might feed. The 
number of teeth was the same as in man, and they were of 
the same kinds, namely, in each jaw four incisors, two 
canines, four premolars, and six molars. The characters of 
the nasal fossae indicated a moderate, not an acute sense of 
smell. In the foramen magnum he observed this difference, 
that while in man it is oval, in the gorilla it was almost 
circular or squarish. The base of the skull was convex as 
in man, corresponding with a concave internal surface upon 
which the brain would rest. The mastoid processes, which 
phrenologists considered to indicate destructiveness, but 
which are really a part of the organ of hearing, w'ere not 
quite so well developed as in man. In the present case one 
