PEACTICE OF MEDICINE AND HYGIENE 



on the poor dog, and petitions against his be- 

 ing tied up or wearing a muzzle, is so inhumane 

 but that he would be cured of his consideration 

 for the dog if he could but see one human being 

 with hydrophobia. Besides, for every human 

 being who dies of rabies there are a hundred 

 times as many dogs. The interest of the ani- 

 mals also demands the elimination of the dis- 

 ease. 



No man of modern times can be named Louis 

 whose benefactions to mankind have been Pasteur, 

 greater than those of Louis Pasteur. He 

 laid at rest the theory of gross spontane- 

 ous generation, which for centuries had 

 blinded the world. Besides his discovery 

 of the cause of fermentation, he discov- 

 ered that each infectious disease is caused 

 by a micro-organism, and he discovered that the 

 microbe of the disease could be cultivated un- 

 der such conditions as to destroy its virulence 

 and yet enable it to be used by inoculation as 

 a vaccine to prevent the disease. Out of his 

 discoveries grew modern antiseptic surgery 

 and the antiseptic treatment of wounds inau- 

 gurated by Lord Lister. His discoveries also 

 were the beginning of the treatment of infec- 

 tive diseases by bacterial products. He first 



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