Bronchitis 281 
Sulfate of iron (pulverized ) . 2 ounces 
Nux vomiea seed (pulverized) . . 1 ounce 
Gentian root (pulverized) i . 2 ounees 
Nitrate of potash (pulverized) . . .2 ounces 
Mix the ingredients thoroughly, and give a tea- 
spoonful in the feed three times daily. Steam the 
head and spray ps nostrils once daily with the follow- 
ing: Borie acid, 2 drams; warm water, 1 quart. In 
some cases, there is a collection of pus in one of the 
cavities of the head. It is best to trephine (cut open) 
the bone and wash out the cavity with the above 
solution. Such a measure greatly hastens the cure of 
the disease. 
Other diseases that resemble chronic catarrh are 
the ulceration of a molar in the upper jaw, and 
glanders, described elsewhere (Chapter XVI). 
BRONCHITIS 
Inflammation of the bronchial tubes is one of the 
most common diseases that attack domestic animals. 
It is usually acute, but may be chronic. It is often 
associated with pneumonia or inflammation of the 
lungs. 
Exposure to cold aud dampness, especially when 
warm, is the most common cause; also foreign sub- 
stances, such as smoke or medicines, that irritate the 
bronchial tubes. It sometimes follows sore throat and 
often starts as a severe cold. 
Bronehitis usually begins with a chill, which may 
last from five minutes to an hour. It is followed by 
