TRANSLATION8 FROM FOREIGN PAPERS. 
55 
It is the expression of a scientific truth, positively obtained by 
observation, and better still by direct experiment. 
In general thesis it can be said that gourme affects an animal 
but once, at least in a severe form. 
And again, it is not less admitted that this disease will mani¬ 
fest itself, almost certainly, sooner or later. Leaving aside the 
technical question relating to the possibility of its spontaneous 
development in a healthy organism, its appearance by contagion 
can be considered as an unavoidable fact. 
Indeed, as a consequence of the numerous peregrinations to 
which horses are submitted by transport from breeding to raising 
districts and thence to great industrial and commercial centres ; 
also by their exhibition in fairs and markets; their gatherings in 
greater or smaller numbers &c., &c.;—their escape from contami¬ 
nation is almost impossible, one day or another. Therefore, in the 
practical point of view, one must in principle admit that sooner 
or later a horse will be affected with gourme, and if a few excep¬ 
tions are possible, they are so limited that they cannot be taken 
into consideration. 
Again, it is well established, that under the form of horse-pox 
with a regular evolution, the disease is a mild affection, without 
immediate danger and without future serious sequelae. 
The solution of the problem concerning this disease, is this: so 
long as it cannot be avoided, to produce it at one time and even in 
one selected spot, so as to protect the sick ones from the opera¬ 
tion of the influences which usually interfere with its normal 
progress, and thus give rise to the manifestations more or less 
serious, already pointed out. 
The true means of effectually securing this result is to inoculate 
according to the directions I am about to indicate. 
To do it, one might take the virulent liquid directly from a 
variolous horse. In raising the epidermic covering of a single 
pustule at the period of secretion, one may obtain enough 
material for several inoculations. I have often operated in that 
way, and always successfully, when of course, 1 have done it on 
animals not deprived of receptivity by a preceding attack of the 
disease. The transmission from horse to horse is consequently 
