58 DISEASES OF THE DIGESTIVE APPARATUS. 



some anti-fermenting agent, such as dilute nitric acid, cieosole, 

 salicylic acid, or a bitter tonic, such as rhubarb combined with 

 bicarbonate of sodium. Calumbo root also gives excellent results. 

 The other bitters are apt to disturb the stomach and digestion, as 

 is also the case with the various agents that are used to counteract 

 catarrh, for instance, zinc oxide, silver nitrate, and bismuth sub- 

 nitrate. 



U .— Rhei rad. pulv. . . .... 5.0 



Sodium bicarbonas . . . . . .40.0 



M. fiat. pulv. No. X. S. — One three times daily. 



R.— Napbthalin , . .0.3 



Saccharum alba . . . . . . .0.6 



M. fiat. pulv. No. X. S. — Give one powder three times daily. 



Ulceration of the Stomach. 

 {Ulcus Ventriouli.) 



When any bleeding occurs from the stomach as the result of 

 some acute inflammatory condition of that organ it always leaves 

 an erosion of the mucous membrane. As a rule, this heals up very 

 rapidly in the dog, rarely leaving any cicatrix on the membrane; 

 abrasions of the mucous membrane from sharp pieces of bone, 

 splinters, or caustic agents also heal up very rapidly. 



Occasionally, however, we see the true ulceration of the stomach. 

 The real cause of this condition has not yet been satisfactorily ex- 

 plained, although many investigations have been made on the 

 subject. 



The ulcer is generally at the beginning an inflamed circular spot, 

 from which the mucous membrane peels and gradually disappears, 

 extending to the deeper tissues, where it forms a yellowish-red, 

 unhealthy surface, with an irregular, hard, indurated border. 

 Very often they heal up, leaving an irregular cicatrix, generally 

 circular in shape. 



In the dog, as in the man, we find that in rare instances the 

 ulceration is so extensive as to perforate the stomach to the serous 

 membrane, and form adhesions to the adjacent organs. 



Clinical Symptoms. Ulceration of the stomach undoubtedly 

 occurs in the dog, as cicatrixes have been seen on the stomach 



