. 



muzzle all the pariah-dogs of India, and all th 

 wolves in Russia ? 



It is not claimed, that among so many tens of 



thousands of cases treated, in all parts of the world, 



* 



/ ' v there has never been a disaster. But it is abso- 



/. lutely certain, that the method has indeed brought 

 * 



down the mortality almost to vanishing point. The 



estimate of 16 per cent, must include many cases 

 where the biting animal was not really mad. Take, 

 therefore, 1,000 cases, all of them belonging to 

 class A. It is safe to say that the mortality among 

 them, without Pasteur's treatment, would be far 

 more than 16 per cent. With Pasteur's treatment, 

 it is less than 1 per cent. 



But this final work told on him : it made him 

 older than his years. In November, 1888, the 

 Pasteur Institute was opened : it was the gift not 

 of France alone, but of many countries, to Pasteur : 

 " but he was a broken and tired old man, and it 

 was sad to see how his hard work and the opposi- 

 tion he had so often encountered had aged him."* 



infectious disease : all you have to do is to establish a brief 

 quarantine covering the incubation period, muzzle all your 

 dogs at the present moment, and in a few years you will be 

 free. 1 When the Committee returned and reported to the 

 Houses of Parliament, this point, of course, was always 

 before us."" Sir Victor Horsley, Evidence before the Royal 

 Commission on Vivisection, November 13, 1907. 



* From Dr. Sandwith's admirable Gresham Lecture, 

 Pasteur, Science and Medicine, in the Practitioner, December, 

 1909. Published, also, by the Research Defence Society. 



