266 Veterinary Medicine. 



washes out the poison. In still other cases the rabid animal 

 making a number of snapg'in rapid succession comes to the last 

 with the teeth wiped clean and harmless. Again the prompt 

 washing or cauterizing of the wound tends often to protect 

 against infection. 



Under favorable circumstances however every bite infects, 

 and the writer has seen six animals, bitten in the same stable, all 

 contract rabies, while a man bitten through the coat sleeve by the 

 same dog, and cauterized an hour later entirely escaped. If the 

 bites are multiple, deep and irregular, the danger is greater. 



The licking of wounds is an occasional mode of infection, the 

 rabid dog in the early stages of the disease sometimes showing 

 an unusual disposition to fawn upon his owner. 



Again particles of saliva may be projected by sneezing or 

 otherwise and lodge on sores, or on the mucosa of the nose, eye 

 or lip so as to cause infection. Galtier has conveyed the disease 

 experimentally to rabbits in 1 1 cases out of 75 by making them 

 breathe the atomized infecting liquid, or by dropping it into the 

 nose. In the same way he infected Guinea pigs and sheep. 



Galtier and Bujwid have conveyed the disease, exceptionally, 

 to rabbits and rats by feeding infecting emulsions. Galtier has 

 also produced rabies in ^^^th to ^d of the cases operated on by 

 instilling the virus into the eye. 



Incubation. The duration of incubation varies with the species, 

 individual, the seat and character of the bite, the amount of virus 

 instilled, the potency of the virus, the age, size and weight of the 

 subject, the excitement of rutting, climatic or weather vicissi- 

 tudes, fatigue, and nervous or febrile disorders. 



In the dog incubation rages from 15 to 60 days, and perhaps 4 

 to 6 months. It is claimed to have lasted a year but this is some- 

 what doubtful. In cats it has varied from 15 to 60 days. 



In solipeds it ranges usually from 20 to 45 days. The extremes 

 stated are 15 days and 20 months. 



I In cattle it ranges from 14 to 50 days (exceptionally 70 days), 

 lin sheep and swine from 14 to 60 days. It has been claimed to 

 have lasted 4 months in swine and 5 months in sheep. 



In rabbits subdural inoculation has an incubation of 15 days, 

 shortening in 25 removes to 8 days, and finally to 6. 



In man incubation is alleged to be even more varied. The 

 rule is from 14 to 64 days, but it is claimed to have been as short 



