ON SPECIFIC FEVER OF HORSES, OXEN, &C. 529 
strangles. His object was to produce the mildest result of this 
peculiar fever; for the losses had been very serious when the 
disease appeared in one of its severer forms. Mr. Assistant 
Superintendent Gibb, who had been at the Veterinary College, 
seeing that farcy, and not strangles, was the result of this inocu¬ 
lation, forbad all further experiments. This was previous to 
Mr. Sewell’s inoculation with the pus from tuberculous ulcers in 
the lungs. 
I determined, however, again to experiment with the pus of 
strangles, and I inoculated a yearling with it in the under lip, 
and produced the fever and strangles at the usual periods. 1 
have often produced similar results by the same means from 
other colts. 
I had previously tried inoculation from a fresh tubercular ulcer 
of the skin (bursauttee); and although I failed in producing a 
secondary bursauttee ulcer, I observed that I had deranged^the 
circulatory system and produced fever. 
In regard to the transmission of disease from one kind of ani¬ 
mal to another, I have over and over again produced disturbance 
in the system by inoculating ditferent kinds of animals with pus 
from local affections in others. You are not, however, always to 
expect a precisely similar local affection, on account of some pe¬ 
culiar idiosyncrasy, or difference in predisposition. I have pro¬ 
duced pustules similar to small-pox in dogs by inoculation with 
the matter of glanders. 
Man, whether congregated in uncivilized or civilized life, is 
predisposed to similar specific fever in youth, and also to similar 
results, small-pox, tubercular phthisis, and scrofula. He also 
has the advantage of similar preventives of the severer forms of 
disease by the milder specific fever, and also by local affections 
produced by inoculation, as the immunity from variola which the 
vaccine lymph effects. 
The local affection in these cases seems to result from the de¬ 
bility of the part: thus, in India, where a horse will perspire 
freely in the shade at the period of the year when the bur¬ 
sauttee ulcer is prevalent, it induces debility in the vessels of the 
skin, which predisposes to this local affection as the result of the 
fever; and as this does not happen in other countries, it is re¬ 
markable as shewing the cause of these things. 
The symptomatic difference is obviously enough produced by 
difference in the predisposing and exciting causes. Animals 
congregated as in India in the open air, or at grass or straw- 
yard in Europe, do not escape this attack of fever. Yearlings, 
or older colts, during their easy journies from the breeder to the 
stud, would have the fever, and sometimes strangles or catarrh ; 
