20 BACTERIA IN DAILY LIFE 



of the most glorious achievements of the past 

 sixty years is the progress which has been made 

 in the domain of preventive medicine. 



The classical investigations of Pasteur "on the 

 attenuation of bacterial viruses such as those of 

 chicken-cholera and anthrax, and his elaboration 

 of a method of vaccination with these weakened 

 viruses whereby the power of the disease over 

 its victim is removed or modified, are too well 

 known to require repetition here. The success 

 which followed Pasteur's researches in this direc- 

 tion led him to undertake that great and difficult 

 task, the prevention of rabies in the human 

 subject a task well-nigh superhuman in its de- 

 mands, and one which only he could accomplish in 

 whose life the pregnant words of a modern writer 

 found expression " il ne suffit pas de posseder une 

 vdrite, il faut que la verite nous possede." The 

 victory over this disease, which crowned a long life 

 replete with brilliant achievements, has been uni- 

 versally recognised, and numerous institutes have 

 arisen in all quarters of the globe for extending the 

 benefits of this discovery for the relief of suffering 

 jiumanity. These Pasteur or bacteriological in- 

 stitutes also furnish highly important centres 

 where original research work of various kinds 

 is carried on, and the stimulus which has thus 

 been given to experimental science in the re- 



