Specific and Contagious Diseases. 159 
taneous origin. The disposition to bite is evidently due 
to the condition of the brain, amounting not only to a 
loss of the normal sensation, but also to mental aberration. 
This is shown sometimes by apparent violence in the 
attack as well as seizure, shortly relinquishing his hold 
after a harmless grip, then turning to resume his way as 
if nothing had happened. 
In the form known as dumb rabies the lower jaw drops 
from paralysis, the tongue hangs loose and becomes of a 
dark purple hue, the throat also swells. The eyes are 
dull, heavy and affected with strabismus or squinting, in 
some cases the pupils being turned towards the nose. 
As a result of previous violence the head is often 
swollen, and the teeth are broken; the lips and tongue 
are likewise swollen and lacerated from the violence of 
attack on other animals or objects, as well as in unsuc- 
cessful attempts to gain his liberty. Perverted taste is 
evident from the very earliest period of the disease, which - 
causes the sufferer to take up all kinds of foreign bodies, 
large accumulations of which are found in his stomach 
after death. Vomition, sometimes expelling blood, is 
present only in the early stages, after which paralysis sets 
in followed by death. The fondness for urine is deemed 
a sure evidence of rabies. Sexual excitement is often 
intense before other really diagnostic signs are recognised ; 
sometimes also the desire to lick the genitals of other 
dogs. Fever is present and increases with the develop- 
ment of the disease. There is a bright red or lurid 
appearance in the eyes, probably with squinting of both, 
pus accumulates in the angles, and a discharge flows from 
the nostrils. As the disease advances the breathing is 
loud and hollow, and in subsequent stages it is per- 
formed mainly through the nostrils. The voice is also 
peculiarly affected : the how! of a mad dog is an experience 
which will never be effaced from memory. It is utterly 
impossible to convey its characters by any selection of 
terms. It must be heard tobe really understood. Confined 
to his cage or otherwise secure he sits on his haunches, 
the muzzle directed upwards or resting his head on the 
wall, he attempts an abortive kind of bark which curiously 
