254 The Diseases of Animals 



flammation. These should be followed by applications 

 of iodine ointment, tincture of iodine, or a good, stimu- 

 lating liniment, well rubbed in. If there is difficulty in 

 swallowing, soft foods, gruels and milk should be given. 

 In rare cases, the gland suppurates, or "gathers." As 

 soon as pus can be felt, an opening should be made, 

 very carefully, as there are important blood-vessels in 

 this region. The pus should be washed out, and mild 

 antiseptics injected, such as a solution of bichlorid of 

 mercury (one part to 1,000 parts of water), or a three 

 per cent solution of carbolic acid. 



SALIVARY CALCULUS 



The duct that carries the saliva from the gland to 

 the mouth passes under the jaw, winds outward over 

 the lower jaw-bone and empties opposite the third 

 molar. Sometimes a hard mass, or concretion, com- 

 posed of salts of lime, called a "calculus," forms in the 

 duct, and stops the saliva from passing into the mouth. 



The calculus may be removed by working it out into 

 the mouth, or a surgical operation may be required. 

 Great care must be taken in the latter case to prevent a 

 fistula forming, which will allow the saliva to escape on 

 the outside, instead of into the mouth. When such 

 fistulae do form, it is often necessary to destroy the 

 gland by injecting iodine or nitric acid into it through 

 the duct. 



SALIVATION, OR SLOBBERING 



This is an excessive discharge of saliva from the 

 mouth. It is frequently seen in horses, cattle and 



