386 TBE DIGESTIVE APPARATUS IN MAMMALIA. 



Siiuation.—The stomach, also designated the ventriculns, is situated in the 

 diaphragmatic region of the abdomen, where it affects a direction transverse 

 to the median plane of the body. . •■ it ■ r 



Dimensions.— Its average capacity, m an ordinary-sized Horse, is from 

 3 to 31 gallons; but it varies greatly according to the bulk of the anima], 

 its breed and the nature of its food. Eelatively, it is more considerable 



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in common-bred Horses, and in the Ass and Mule. When empty, its average 

 weight is between 3 and 4 pounds. 



Form. — Elongated laterally, curved on itself, often constricted in 

 its middle, and slightly depressed from before to behind, this reservoir 

 presents, externally : 1, T-wo faces — an anterior and posterior, smooth and 

 rounded ; 2, A great or convex curvature, forming the inferior border of the 



