434 PROTECTIVE INOCULATION FOR BOVINE PLEURO-PNEUMONIA. 



The wliole question, then, amounts to this. The necessary steps 

 will have to be taken for a thorough investigation of the subject, 

 in order to place it on a more scientific basis. "What has already 

 been done in this direction is scarcely more than a mere begin- 

 ning, and a great many more experiments will have to be made, 

 until we are entitled to say the etiology of the disease is as cleai'ly 

 known as, for instance, that of anthrax, and the question of 

 protective inoculation against the disease regarded as solved. The 

 present movement here and in Queensland evidences that these 

 countries have come to the conviction that they will have to go and 

 follow up their own way, instead of waiting till other countries are 

 pleased to lay the desired remedy before them. 



