HYDROPHOBIA 285 



International Medical Congress at Copenhagen (Au- 

 gust 11, 1884) Pasteur gives the following account 

 of the results of this test experiment. 



He says that he gave to the commission nineteen 

 dogs which had been rendered immune against rabies 

 by preventive inoculations. These nineteen dogs and 

 nineteen control animals, obtained from the public 

 pound, without any selection, were tested at the same 

 time. The test was made upon some of the animals of 

 both series by inoculations with virulent material from 

 rabid animals, made upon the surface of the brain, by 

 trephining ; and upon others by allowing them to be 

 bitten by rabid dogs ; and upon still others by intra- 

 venous inoculations. Not one of the protected ani- 

 mals developed rabies ; on the other hand, three of 

 the control animals out of six bitten by mad dogs 

 developed the disease ; five out of seven which re- 

 ceived intravenous inoculations died of rabies ; and 

 five which were trephined and inoculated upon the 

 surface of the brain died of the same disease. In 

 a subsequent report the commission, of which M. 

 Bouley was president, stated that twenty-three dogs, 

 which had been protected, were bitten by mad dogs 

 and that all remained in perfect health, while sixty-six 

 per cent, of the control animals, bitten in the same 

 way, developed rabies within two months. 



Evidently this method could be applied upon a 



