870 The Diseases of Animals 
during the hot months, but statistics show that a 
slightly greater number of cases occur during the 
winter months. In the dog, rabies oecurs in two 
forms, the dumb and the furious, the latter being the 
most frequently observed. The period of ineubation,— 
that is the time that elapses after the animal or person 
is bitten and the appearing of first symptoms of. the 
disease,—varies from a few days to many months, the 
average being from three to six weeks. 
The first symptom usually seen in dogs is a dull, 
depressed condition. The dog crawls into obseure places 
and dislikes to be disturbed. He licks the original 
wound and the genital organs. The appetite is ab- 
normal, the dog eating grass, sticks, dung, and the like. 
As the disease progresses, the dog becomes cross, snap- 
ping at space or at inanimate objects, at other animals, 
and at persons. 
A rabid dog shows a tendeney to wander, often going 
long distances and attacking persons and animals. If 
confined, he will bite sticks or other objects, and some- 
times will tear his own flesh. In the later stages of the 
disease, the dog becomes exhausted, the eyes sunken. 
and the body emaciated. Associated with this is paral- 
ysis, partienlarly of the hind parts and the lower jaw, 
the latter condition being accompanied with a discharge 
ot saliva. The hark of a rabid dog is peculiar,—a 
short bark prolonged into a whine. Death oceurs from 
exhaustion soon after paralysis sets in. 
Post-mortem examination of dogs that have died 
from rabies does not give definite information. There 
is shght irritation of the stomach and _ bowels, the 
