548 DISEASES OF THE HORSE. 
‘veterinarian, who a few months afterwards treated the horse for a 
skin eruption from which it recovered. Twelve months afterwards 
it came into the hands of the writer, hidebound, with a slight cough 
and a slight eruption of the skin, which was attributed to clipping 
and the rubbing of the harness, but which had nothing suspicious in 
its character. The horse was placed on tonics and put to regular 
light driving. In six weeks it developed a bronchitis without having 
been specially exposed, and in two days this trouble was followed by 
a lobular pneumonia and the breaking of an abscess in the right lung. 
Farcy buds developed on the surface of the body and the animal died. 
The autopsy showed the existence of a number of old glanderous 
nodules in the lungs which must have existed previous to purchase, 
more than a year before. 
Public watering troughs and the feed boxes of boarding stables and 
the tavern stables of market towns are among the most common 
recipients for the virus of glanders, which is most dangerous in its 
fresh state, but cases have been known to be caused by feeding ani- 
mals in the box or stall in which glandered animals had stood several 
months before. While the discharge from a case of chronic glanders 
is much less liable to contain many active bacilli than that from a 
case of acute glanders, the former, if it infects an animal, will pro- 
duce the same disease as the latter. It may assume from the outset 
an acute or chronic form, according to the susceptibility of the ani- 
mal infécted, and this does not depend upon the character of the 
disease from which the virus was derived. 
The animals of the genus “'quus—the horse, the ass, and the mule— 
are those which are the most susceptible to contract glanders, but in 
these we find a much greater receptivity in the ass and mule than we 
do in the horse. In the ass and mule in almost all cases the period 
of incubation is short and the disease develops in an acute form. We 
find that the kind of horse infected has an influence on the character 
of the disease; in full-blooded, fat horses of a sanguinary tempera- 
ment, the disease usually develops in an acute form, while in the 
lymphatic, cold-blooded, more common race of horses the disease 
usually assumes a chronic form. If the disease develops first in the 
chronic form in a horse in fair condition, starvation and overwork 
are liable to bring on an acute attack, but when the disease is inocu- 
lated into a debiliated and impoverished animal it is apt to start 
in the latent form. Inoculation on the lips or the exterior of the. 
animal is frequently followed by an acute attack, while infection by 
ingestion of the virus and inoculation by means of the digestive tract 
is often followed by the trouble in the chronic latent form. 
In the dog the inoculation of glanders may develop a constitu- 
tional disease with all the symptoms which are found in the horse, 
but more frequently the virus pullulates only at the point of inocula- 
