T2 
rate portions of the left or cardiac extremity, and 
chiefly because, like that portion in other animals, 
probably (according to Home) even in man, their 
operation is to prepare food for the digestion, which 
is accomplished in the fourth or pyloric stomach®.” 
The stomachs of the camel, dromedary, and lama, 
are distinguished by two cellular appendages to the 
first cavity, and by a peculiar musculo-cellular struc- 
ture of the second. The fluids which these animals 
take at distant intervals, though in large quantities, 
pass into the second stomach, (or honeycomb bag.) 
The cells of that cavity are about an inch in diame- 
ter, and possess a power of contracting and closing 
their orifices so as to retain water without allowing 
it to be contaminated by intermixture with other 
contents of the stomach, even during the repassage 
of the ruminated food?. Amongst hoofed animals 
the solipeda exhibit a more simple form of stomach. 
The stomachs of amphibious mammalia, the seal, 
&c. approximate to those of fishes; those of ant- 
eaters and armadilloes, to those of birds. Having no 
teeth, they swallow small stones into muscular sto- 
machs, to give aid in crushing their food. The vis- 
cera of carnivora, as before said, are proportionally 
short, those of herbivora very long. But the gene- 
ral rule has frequent exceptions, which however ap- 
pear to be explicable by reference to a greater com- 
° Carus, vol. ii. p. 97, 98. 
P Home mentions, that a camel observed by him drank but 
once every two days, & then to the amount of six or seven gal- 
lons at once, 
