DISEASE IN CATTLE RESEMBLING RABIES. 
613 
case rabies was produced without any bite or inoculation, and 
will in a few words endeavour to prove that this disease was 
rabies, that it arose spontaneously, and whence it arose. 
That it was rabies was testified by the uneasiness, wildness, 
fury, attempts to gore with the horns or do other mischief — loss of 
appetite — refraining from drink — foam about the mouth — frequent 
hello wings — phlegm falling from the lips — tendency to constipa- 
tion — falling in of the belly — weakness of the hinder parts — con- 
vulsions of the muscles of the thigh — rapid exhaustion — and slight 
internal alterations, which merely consisted in congestion of the 
brain and superficial inflammation of the large intestinal canal. 
These are the characteristics given by most persons who have de- 
scribed rabies in cattle. It is true that many, nay, most, of the 
same symptoms will be found accompanying inflammation of the 
brain ; but in that the animal is actually frenzied ; the disease 
speedily runs its course, and every characteristic betrays the 
presence of inflammation. Here it was not so ; and I am con- 
vinced that the disease was rabies. That it was not produced by 
the bite of a rabid dog is evident from the fact that such an one 
had not been heard of, nor any case of rabies until this epidemic 
broke out. Besides, supposing a mad dog to have come among the 
Heyden herd, it is most unlikely that he should have been able to 
bite thirty-four of them, for cattle do not run from any dog which 
attacks them, but defend themselves with their horns ; nor had 
one attacked them could he have done such extensive mischief 
without being perceived by the herdsmen. There were no traces 
of scars or wounds as from a bite ever observed on the feet, legs, 
or muzzle : no lameness, no bleeding, all of which could not have 
escaped notice in some, at least, out of the thirty-four had they 
been bitten. Some may, perhaps, urge, that a few only were bitten, 
and the disease communicated from them to the others by contact, 
or by means of particles of saliva ; but if it were so, why should 
one-half the herd have escaped ; all were together 1 
When a mad dog is seen in any place the report flies like 
lightning, and half the population turn out to hunt him to death : 
such occurrences are no secret. All the animals attacked by this 
epidemic were the youngest and strongest in the whole of the 
herd : how strange that a mad dog should have selected them 
particularly! Hence ami led to deem it improbable that this 
disease arose from the bite of a mad dog. The next question is, 
Whence, then, did it arise 1 Many appearances tend to prove 
that the animals in Doblen and Mitau had had, in the previous 
summer, a tendency to disease of the covering of the brain, com- 
bined with a gastric affection that had prevailed some two years 
previously, first among human beings, and then among the cattle. 
