RABIES. 669 



New York Health Department have been very en- 

 couraging. 



Other methods of immunization against rabies have 

 been proposed by different investigators. But all of 

 these methods have proved on trial to be unsatisfactory 

 and unreliable, beside being not devoid of danger. As 

 early as 1889, Babes and Lepp conceived the idea that 

 it might be possible by means of the blood to transmit 

 conferred immunity from rabies from one animal to 

 another; but although the success of these investigators 

 was not great, Tizzoni and Schwartz, and later Tizzoni 

 and Centanni, worked out a method of serum inocula- 

 tion and protection in rabies which is worthy of atten- 

 tion. In this method not the rabic poison itself but 

 the protective material formed is injected into the 

 tissues. These observers showed that the serum of 

 inoculated animals is capable of destroying the patho- 

 genic power of the rabic virus not only when mixed 

 with it before injection, but when injected simultane- 

 ously or within twenty-four hours after the intro- 

 duction of the virus into the body. This serum 

 treatment of rabies is still in the experimental stage. 

 We ourselves have had no experience with it, nor has 

 it been adopted in Paris, or, so far as we know, in other 

 places. It is quite possible that others will not obtain 

 such good results as the authors of the treatment, or 

 that it may not prove so efficacious in the treatment of 

 man as it has been found to be in experimental work. 



The Cauterization of Wounds Infected with the Virus 

 of Rabies after an Interval of Twenty-four Hours. It 

 is commonly believed that unless a cautery is used 

 within an hour after infection by a suspected animal it 

 is useless to apply it. This belief is held by physi- 



