BLENNORRHCE OF THE EYES. 
15 
above-mentioned disturbances, or as a consequence t>f numerous 
complications, and consequential disturbances, as opacity of the 
cornea, malformation, cataract, etc. 
JLTIOLOGIE. 
Idle most difficult part of my task is to define the setiological 
momenta of this disease, and to bring them in unison with the 
ens of the same. I have already sought to show that the inflam¬ 
matory forms of this disease are spontaneous [That is, of un¬ 
known origin.— Trans.] and virulent, according to the action of 
the causal influences. 
It must be emphasized that the disease appears sporadically 
and as an enzootic. With regard to the latter, the chief factors 
which influence the aetiological momenta are, aside from a pre¬ 
vailing disease, constitution, climatic and telluric influences, which 
contribute not a little to the genesis and support of the enzootic. 
Influences of the most variable nature to which horses are ex¬ 
posed, are in condition, by concomitant action, to bring about 
such affection of the conjunctive. Local evils, unfavorable tel¬ 
luric conditions, poor stabling, render numerous appearances of 
the disease possible ; the enzootic character finds support in poor 
food and the action of climatic influences. In this regard, the 
change in the seasons assumes a prominent place, as I observed 
very frequently in early spring and late fall that the disease ap¬ 
peared under such circumstances, and at such territorial condi¬ 
tion, that it was impossible to favor ideas with regard to recipro¬ 
cal infection; while at other times the disease could be only 
described as sporadic in its character. Again, it appeared under 
the influence of most unimportant conditions of the weather, 
such as wind and dryness, with as extreme violence as any 
other devastating pest. The “ virous” character of the dis¬ 
ease had at times a subordinate importance for its enzootic 
extension. I wish to place extreme emphasis on its “ virous ,” 
and not its contagious, character, for, in these cases, virus and 
contagium are to be most strongly distinguished, as this point 
is not, perhaps, so sharply prominent in any disease callable of 
dissemination per infection, as by the disease in question ; for the 
J 
