DISEASES OF THE STOMACH. 67 



or two after feeding, especially if the dog had taken any ex- 

 ercise." 



CALCULI IN THE STOMACH. 



These calculi are exceedingly rare in the dog. They differ 

 but little in appearance and character from those found in 

 other portions of the viscera, being chiefly composed of the 

 phosphates of lime and magnesia intermixed with organic 

 matter, and having a smooth glistening surface. 



Medicinal treatment, particularly acids, would be more 

 likely to have a direct influence on them, by coming in actual 

 contact with them, than in renal or vesicular calculi. 



FOREIGN BODIES. 



The stomach of the dog is frequently the receptacle for 

 strange substances, some interesting cases of which are re- 

 corded by Youatt. 



The presence of hair, straw, wood, stones, dung, and such 

 like, though usually found in rabies, are not to be taken 

 always as an infallible sign of that disease. 



The partaking of the latter (dung) is a frequent and dis- 

 gusting habit with young dogs, apparently in perfect health. 

 In unkennelled animals it is rarely seen, and would therefore 

 appear to a great fextent to depend upon the denial of suffi- 

 cient liberty, and the contraction of morbid tastes through 

 confinement and injudicious management. Hunger and filth 

 play a prominent part in creating such tastes. 



