INFLL ENCE OF CLIMATE, ETC., ON THE DISTRIBUTION & CHARACTER OF DISEASE. 549 
three were acute in character, two common work horses, indif¬ 
ferently cared for, and one a draft stallion kept stabled. 
I had occasion to inspect some 2,coo range horses for glan¬ 
ders at the annual round-up, and while I found on the range 
twelve glandered animals, all but two of them had been worked 
on valley farms where glanders existed, and where they had 
either contracted or developed the disease. Of the two unbro¬ 
ken range animals found affected, one was a two-year-old geld¬ 
ing, the other an aged brood mare affected for five years. Both 
were in first-class general health, and showed slight, but evident 
local lesions. Most of the animals affected for the longer periods 
were of a very mild type. One recent case I have watched for 
a few months was severely affected, constitutionally and locally, 
in January this year, but has rapidly improved and is now ap¬ 
parently well, except small cicatrices in nostril and very slight 
glandular tumefaction. 
The disease in Montana must be said to assume a remarkably 
mild type, and on the ranges is barely a contagious disease, and 
although farm animals badly affected are allowed at idle seasons 
to intermingle freely with range stock, yet the disease is rarely 
seen among them. Perhaps it is far more common among these 
range, or practically wild horses, than it would seem, but re¬ 
mains wholly latent, or in a mild internal form, until the animal 
is caught and subjected to the fatigue of rough breaking, when 
it develops. It seems, highly probable that some range horses 
acquire the disease in a mild form, recover, and thereafter pos¬ 
sess immunity. Post-mortem examinations of glandered horses 
in Montana show a less severe affection of the lungs, few gland¬ 
erous tubercles being present. 
In England the disease' assumes, apparently, a more acute 
.type than in most parts of the United States, and Prof. Williams 
(Pnn. and Prac. Vet. Med.) holds that the only practical pos¬ 
sibility of recovery is in mild cases of farcy. Fleming (Vet. 
San. Science and Police , Vol. I., page 505) admits the possibility 
of recovery in mild cases of farcy. 
In Continental Europe it would seem it assumes a milder 
