BRONCHITIS. 39 
smoke, which must be thick, or the exposure quite protracted, to have the harm- 
ful effect. 
As said, bronchitis generally follows a similar inflammation in the nose and 
throat, therefore, as a rule, there is first acute coryza. But the inflammation ex- 
tends downward so rapidly that the throat is seldom more than lightly touched 
by it, consequently the trouble there is scarcely noticeable. Usually the coryza 
has existed for about two days when the cough is first heard, and then it is short, 
dry, and dull; but ere long it is easier and “looser.” 
An inflammation in the chest must necessarily be attended with greater 
general disturbance than a similar trouble confined merely to the nasal passage, 
therefore, in bronchitis the disinclination to active movements is more marked. 
The victim is somewhat depressed and spiritless ; he has but little if any appe- 
tite. Pressure on his chest causes him to cough. He likely shivers at times, 
and has some fever, which is higher, while the pulse is more rapid, than in simple 
coryza. It is a significant fact, however, that the rise in temperature and pulse- 
rate is never considerable in bronchitis. With this in mind there should not be 
much danger of confounding it with that serious disease pneumonia. 
In simple acute bronchitis the respiration is not quickened, but it may be 
wheezing. There is, however, a form in which the breathing is very rapid 
indeed, namely, the so-called capillary, bronchitis, in which the disease invades 
the very small bronchial tubes. But fortunately this, a fatal malady, is very 
rare in dogs. 
Ordinary bronchitis, when occurring independently of other affections, 
may be considered trifling, as it does not endanger life, nor is it likely to 
become chronic; and as a rule, recovery takes place in the course of one or 
two weeks. 
As for chronic bronchitis, a cough persistent for a month or more may be 
considered evidence of that affection if the victim seems otherwise healthy. 
But it is seldem noted in dogs, even among those well advanced in life, who are 
the most inclined to it; and generally, is not of any importance. 
There is yet another form of bronchitis which deserves passing mention, 
although but few cases of it have been recorded, namely, “verminous bron- 
chitis,” which, as its name implies, is caused by worms, reputed, in the best 
authenticated cases, to be of the genus strongylus. 
Simple acute bronchitis rarely requires medicinal treatment ; for naturally its 
tendencies are all towards recovery, and, as a rule, the patient will do quite well, if 
not much better, when not interfered with. But of course to guard him against 
taking more cold is always necessary, and a comfortably warm and well-venti- 
lated room indicated. This afforded, and the diet kept low for a few days, about 
all required will have been done. 
The cough is salutary, for it keeps the bronchial tubes free; and when the 
affected membrane is right, this symptom will disappear voluntarily. If, how- 
