DIGESTION. 



185 



denominated /(>///cZe5, where the fluid is collected 

 before it is discharged into the cavity of the sto- 

 mach. The gastric glands of birds are larger 

 and more conspicuous than those of quadrupeds; 

 but, independently of those which are situated 

 in the stomach, there is likewise found, in 

 almost all birds, at the lower termination of the 

 oesophagus, a large glandular organ, which has 

 been termed the biilhulus glandulosus. In the 

 Ostrich, this organ is of so great a size as to give 

 it the appearance of a separate stomach. A 

 view of the internal surface of the stomach of 

 the African ostrich is given in Fig. 302 ; where 



303 



304 



c is the cardiac cavity, the coats of which are 

 studded with numerous glands ; g, g, are the 

 two sides of the gizzard. Fig. 303 shows one of 

 the gastric glands of the African ostrich ; Fig. 



