oj graminivorous and carnivorous Animals. i6j 
pects different, correspond so very closely in the structure of 
their stomachs with the rat and mouse, that their stomachs 
must be considered of the same kind. 
In these the food is rendered easy of solution by remaining 
in the cuticular reservoirs ; it is then acted on by the solvent 
liquor, and in the pyloric portion converted into chyle. 
The stomach of the kanguroo, from the peculiarities of its 
structure, forms an intermediate link between the stomachs of 
animals which occasionally ruminate, those which have a cu- 
ticular reservoir, and a third kind not yet noticed, with proces- 
ses or pouches at their cardiac extremity, the internal mem- 
brane of which is more or less glandular. The kanguroo is 
found to ruminate, when fed on hard food. This was observed 
by Sir Joseph Banks, who has several of these animals in his 
possession, and frequently amused himself in observing their 
habits. It is not however their constant practice, since those 
kept in Exeter Change have not been detected in that act. 
This occasional rumination connects the kanguroo with the 
ruminant. The stomach having a portion of its surface covered 
by cuticle, renders it similar to those with cuticular reservoirs ; 
and the small process from the cardia, gives it the third dis- 
tinctive character ; indeed it is so small, that it would appear 
placed there for no other purpose. 
The kanguroo’s stomach is occasionally divided into a 
greater number of portions than any other, since every part 
of it, like a portion of intestine, can be contracted separately ; 
and when its length, and the thinness of its coats are con- 
sidered, this action becomes necessary to propel the food from 
one extremity to the other. Such a structure of stomach makes 
regurgitation of its contents into the mouth very easily per- 
Z 2 
