THE CLASS BIRDS. 



well as of the abdomen; these two cavities not being distinct 

 as in mammals, the diaphragm is rudimentary. This gland, 



Gullet. 



Ventriculus 

 Succenturiatus. 



Gizzard. 



Pancreas. 

 Duodenum. 



Caecum. 



Large Inte3tine. 



Ureter. 



Oviduct. 



Cloaca. 

 Anus. 



Biliary Vesicle. 

 - Biliary Canals. 



Fig. 249. Digestive Apparatus of the Common Fowl. 



the liver, is divided into two lobes, nearly equal, and gives origin 

 to two hepatic canals, which, after uniting, enter the intestine. 



