20 The Management and Dtseases of the Dog. 
weekly, until sufficient irritation is produced, or the inser- 
tion of a small seton, is advisable.. 
BRONCHITIS. 
Bronchitis is an affection to which dogs are very liable. 
It may exist as a primary or secondary disease—z.e., it 
may be present alone, or as an extension of catarrh or 
other respiratory affections. Likewise it may be acute or | 
chronic. 
Causes.—Cold, damp. irritating inhalation, neglected or 
protracted catarrh, or extension of other respiratory affec- 
tions. 
Symptoms —These will depend on the extent of the 
bronchial inflammation ; if the malady is only confined to 
the larger branches of the bronchi, the breathing will be 
much ‘less disturbed than when the subdivisions are in- 
volved, particularly the smaller ones. The cough in the 
former will also be less frequent, louder and more sonorous, 
with little or no expectoration. This form is, however, 
rarely seen in the dog; or, if so, only to be quickly suc- 
ceeded by the more complicated one. I shal! therefore 
describe the general symptoms of the latter in its acute 
stage. 
The respiration is hurried and difficult, the breath hot, 
an incessant wheezing cough (which ultimately becomes 
dry and short), succeeded by expectoration and vomiting 
accompanying it. The expectoration is usually frothy, 
and sometimes mingled with blood. The eyes are red and 
inflamed, the nose dry and hot, mouth devoid of moisture, 
tongue parched and coated with brown fur. The pulse is 
quick and small, and the heart's action jerking. On 
auscultation, the latter emits a thumping noise, and the 
diagnostic mucous rattle of bronchitis is. very distinctly 
heard. A thin mucous.discharge from the nostrils usually 
