Sir Everard Home on 
316 
and a ligamentous substance passed down from it into each 
separate opening, and attached itself to the teeth they contain, 
to serve as gubernacula, to guide the points of the incisors 
and tusks in the right direction to pierce the gum. 
The first, or temporary set of molares which had been 
shed in the other skulls, was in the small one twenty in 
number, there being five on each side of each jaw. 
In the anterior scabrous projection of the lower jaw, were 
four regular sockets on each side, filled with a ligamentous 
substance passing into them from the gum, forming guber- 
nacula for the incisors not yet completely formed. 
The tongue, which is represented in one of the annexed 
Plates (PI. XXVII.) of the natural size, has two nipple-like 
processes at its base, one on each side ; it is only loose for 
half an inch at the point, which is covered with long villi, 
showing that the sense of taste is very delicate. 
The insides of the cheeks are covered with cuticle, in 
which are strong projecting bristles, as in the hare and 
rabbit. 
The oesophagus is lined with cuticle, which terminates 
before the entrance into the stomach, where the oesophageal 
glands are situated. 
The stomach differs from all the stomachs I have yet seen ; 
for although it possesses peculiarities met with in the whale 
tribe, the pecari, the hippopotamus, and beaver, even these 
very peculiarities are differently arranged, as will be seen 
by referring to the annexed drawings. 
The cardiac portion is small, for an animal living on vege- 
table food, and extends farther to the left side beyond the 
entrance of the oesophagus than is usual ; its form is more 
