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 
mereury (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 caleulus 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 
fistule do form, it is often necessary to destroy the 
gland by injecting iodine or nitric acid into it through 
the duet. 
SALIVATION, OR SLOBBERING 
This is an excessive discharge of saliva from the 
mouth. It is frequently seen in horses, cattle and 
