464 
REPORT OF CASE. 
continue to appear indefinitely. Preventive inoculations applied 
to this new stock would have no beneficial effect, as it would be at 
the time of the operation infected through the ordinary channels 
of contagion. 
Before entering the sheds which are infected, recently or of 
long date, horned cattle must be subjected to quarantine, that is, 
for three or four weeks placed in a non-suspicious place, remote 
from infected stables, and be there inoculated the first day of their 
arrival. When once the inoculation has produced its beneficial 
effects, they may be placed in infected barns with impunity, with¬ 
out fear of the dangers of contagion. This wise measure is also 
necessary, because often amongst the newly purchased animals 
there may be some already affected with latent pleuro pneumonia, 
or being in the incubative stage of the disease which everyone 
knows may be quite protracted. 
If cattle owners do not scrupulously follow these rules, they will 
expose their herds to the effects of the scourge, with so much cer¬ 
tainty that inoculation in their hands will then be but a fallacious 
preventive, which instead of giving favorable results, will only be 
followed by failures due to the empiricism and carelessness of the 
operators. 
{To be continued .) 
REPORT OF CASE. 
EMBOLISM OF THE ARTERIES OF THE LEFT HIND LEG FOLLOWING 
PNEUMONIA. 
By A. A. HOLCOMBE, Inspecting Veterinary Surgeon, U.S.A. 
The infrequency of recognized embolism in the equine species 
renders particularly interesting the reports of such cases as have 
been observed and published in veterinary literature. In the 
majority of these cases, the embolism results from primarily di¬ 
seased blood-vessels, and the embolism is found lodged in some 
