respecting the JVater it contains , &c. 383 
longitudinal ridge form a canal along which the ruminated 
food passes into the third stomach. 
a, The oesophagus. 
bh, The longitudinal ridge, dividing the cavity into two 
compartments. 
cc, The muscle which passes to the third stomach. 
d, The opening into the second stomach. 
ee, The muscular cells on the right side of the cavity. 
ff, The larger cells on the left side, which serve to moisten 
the food lying over them, and make it of a fit consistence to 
be regurgitated into the mouth along the canal formed by the 
longitudinal ridge and the muscle going to the third stomach. 
gg. A broad muscular band separating the cellular structure 
into two portions. 
Plate XVIII. 
Represents a posterior view of the first stomach of the 
camel unopened, and an internal view of the second, third, 
and fourth stomachs, in their relative situation to the first, 
similar to the view given of the stomachs of the bullock, in 
Plate XVI. 
a, The oesophagus. 
bb, The coats of the first stomach, in a distended state. 
c, The communication between the first and second sto- 
machs. 
dd, The muscle running along its upper part to terminate 
in the orifice of the third stomach. This muscle when it acts 
with its greatest force brings forward the orifice of the third 
stomach nearly close to that of the second, and by so doing 
shuts up the rows of cells in the lower part of the cavity so 
that no part of the solid food can pass into them. 
mdcccvi. 3 D 
