186 Dr. Jeffries’s Dissection and Description 
leading into the larynx and coming out at the base of this 
cartilage. A valve played at the inferior opening, preventing 
the passage of an instrument downward, but it passed easily 
upwards into the pouch on the neck, which has been mentioned. 
This pouch, the animal could inflate at pleasure; for what 
purpose I donot know. One use might be, when inflated, to 
assist in supporting him when swimming. 
The brain weighed nine ounces and three quarters. The 
nerves arose from this in the same manner as the human, and 
took their exit from the cranium in a similar way. ‘The po- 
sition of the brain differed by the anterior lobes being more 
raised in consequence of the projecting plates of the orbits in- 
ternally, and by the posterior lobes and cerebellum lying lower 
than the human, according to the form of the base of the cra- 
nium. This organ was not dissected. The muscles and blood- 
vessels could not be so minutely examined, in consequence of 
the warmth of the season, as to enable me to give a correct 
account of them. The muscles were in general very distinct, 
having their fasciculi of fibres remarkably strong. ‘The blood- 
vessels were small. ‘ 
Description of the Skeleton. 
The whole skeleton is three feet four inches high. From 
the first vertebra of the neck to the end of the coccyx, it 
Measures nineteen inches. ; 
From the head of the humerus to the end of the middle 
finger is thirty-one inches; the end of this finger reaches to 
the end of the fibula. 
From the top of the trochanter major, to the bottom of the 
os calcis, is seventeen inches. The length of the foot is nine 
inches and a half. The length of the hand is eight inches. 
A line drawn from the nose to the occipital protuberance, 
measures eight and a half inches. 
Round the cranium over the orbits to the occipital protu- 
berance is fourteen inches. 
From the meatus auditorius of one side to that of the other, 
over the coronary suture, is eight inches. 
The longitudinal diameter is four inches and an eighth. 
The lateral diameter is three inches and a half. 
The depth from the vertex to the foramen magnum is three 
and a quarter inches, 
The sutures are serrated, and resemble very much the 
human. 
It has the os triquetrum perfect. 
The orbitar ridges are very prominent. 
The styloid and mastoid processes are short. 
The 
