154 THE DISEASES OF THE HORSE. 



cannot be given per mouth, inject. For doses, see pages 

 13 to 29. 



Tumor of the Lip, usually the lower, causes more or 

 less swelling. It is about the size of a pigeon's egg, has 

 a firm feel, is hot, and gives pain when pressed. Its or- 

 igin may, as a rule, be spontaneous, but it has been 

 known to arise from a bite or a sting. It usually bursts 

 internally in two or three days, discharging pus. Cleanse 

 and inject with a solution of alum or borax daily. 



Tumor of the Face is peculiar to young horses and 

 usually appears on the side, between the eye and the an- 

 gle of the mouth. Like other exostoses, they grow from 

 the bone ; are round, broad at their bases, with little heat 

 and very little tenderness. They may be caused by blows, 

 and perhaps also by caries (bone rot). They do no great 

 harm unless they become fistulous ; but they greatly dis- 

 figure the face. 



Salivary Calculi (stone-like concretions), are sometimes 

 found in the salivary glands, usually within their canals, 

 the parotid duct (canal), &c. An oat or other substance 

 penetrates the canal, or possibly pierces the cheek. It is 

 the nucleus for a stone-like or tartar-like concretion. Its 

 growth is slow. Sometimes it is superficial in depth, when 

 it can be seen or felt ; but sometimes it is deep. Some- 

 times it lacerates the membrane of the mouth, grating 

 against the teeth. It will usually more or less obstruct 

 the flow of saliva. Sometimes it causes swelling. 



Stricture of the Esophagus ((Esophagus) is rare and 

 usually fatal. The tube (throat) sometimes becomes so 

 contracted at the part affected that it will not admit the 

 little finger. As the horse cannot swallow solid food, death 

 results from starvation. 



Dr. Cheetham treated a case successiully by opening 



