RABIES AND STRONGYLUS TETRACANTHUS. 
281 
against something during one of the paroxysms of the disease, 
therefore I did not attach much weight to it. After holding 
a post mortem and finding so many parasites and a good deal 
of inflammation produced by them, I rather attributed all the 
nervous excitement and muscular contraction to their presence. 
When I was called to case 3 and found the symptoms almost 
identical with case 2, my suspicion of rabies was again aroused ; 
but after making an examination of the animal after death and 
finding so many worms again, and evidence of their injurious 
effect upon the intestines, I again nearly gave up the idea of 
rabies and thought the trouble due to the parasites. I have, 
however, recently obtained information that leads me to more 
fully conclude that cases 2 and 3 suffered from rabies. Upon 
the farm where these horses were, there were two dogs, one 
of which became sick a few days after the last horse died. 
The symptoms as described by the owner of the animals were: 
dropping of the lower jaw, a great desire to bite the ground, 
inability to control himself and in a short time he was unable 
to get up, when he was destroyed. The dog made no at¬ 
tempt, at any time, however, to bite those around him. Judg¬ 
ing from this description I have come to the conclusion 
that the dog had dumb rabies; and I have also come 
to the conclusion that in cases 2 and 3 there was rather a 
strange coincidence of rabies and strongylus tetracanthus. 
Since these horses died I have seen four cases of dumb 
rabies in the dog in Circleville, and it has been reported that 
mad dogs were in the surrounding country. 1 have never 
seen a case of rabies in the horse beside these which I have 
related, but taking into consideration the symptoms as de¬ 
scribed by different authors whose works I have had access 
to, the cases above mentioned are certainly somewhat different 
from those usually met with, as the)^ did not manifest any great 
inclination to bite any one, the variation from a natural secre¬ 
tion of saliva was not sufficient to constitute any great abnor¬ 
mality, as there was no marked frothing at the mouth, neither 
did they become so furious as 1 should expect animals to that 
were suffering from rabies. 
It may be that lesions in the intestines caused by the para- 
