668 APPENDIX. 
on the face or head was 1.25 per cent. of those bitten on 
the hand; it was 0.75 of 1 per cent. of those bitten 
on other parts of the body, a little over 0.25 of 1 per 
cent. As a rule, only those persons are treated who 
have been bitten on the face or hands or whose clothes 
have been lacerated, so that the virus has passed into 
the wounds. Ordinarily, a certificate from a physician 
or a veterinarian that the animal was rabid is required 
before vaccination; but if the animal cannot be found 
or the wounds are severe vaccination is performed with- 
out it. Taking only the cases in which rabies has been 
confirmed in the animal by a veterinary surgeon, the 
mortality of the cases treated at the Pasteur Institute 
in Paris is only 0.6 per cent.—a proof, it would seem, 
of the trustworthiness of the statistics. In view of this 
fact there can no longer be any doubt of the value of 
Pasteur’s antirabic treatment. It has been stated by 
some that the percentage of persons killed by the bites 
of rabid animals is inconsiderable; but according to the 
reliable statistics of Leblanc, from 1878 to 1883, out 
of 515 persons bitten in Paris 83 died of hydrophobia, 
a mortality of 16 per cent.; most authorities place the 
mortality at a much higher figure. Extensive bites 
on the face and head are considered to be particularly 
dangerous ; the mortality of these is said to be at least 
80 percent. The bites of wolves seem to be more fatal 
than the bites of dogs or other animals; the mortality 
of these, in spite of the most intensive treatment, is 
stated to be still 10 per cent., as against a previous 
mortality, without specific treatment, of 40 to 60 
per cent. But even Pasteur’s antirabic treatment 
appears to be unavailable when symptoms of the dis- 
ease have manifested themselves. Our results in the 
