LOUIS PASTEUR 



661 



imperfect methods of his time, but he lived long enough to receive 

 many honors and to see vaccination used throughout the civilized 

 world. 



Louis Pasteur. The man who, from a biological point of view, has 

 done more than any one other person to benefit mankind directly 

 was Louis Pasteur. 

 Born in 1822, in the 

 mountains near the 

 border of southeast- 

 ern France, he spent 

 the early part of 

 his life as a normal 

 country boy, fond of 

 fishing and not very 

 partial to study. He 

 inherited from his 

 father, however, a 

 fine character and a 

 grim determination, 

 so that when he be- 

 came interested in 

 scientific pursuits, he 

 settled down to work 

 with enthusiasm and 

 energy. 



At the age of 

 twenty-five he be- 

 came well known 

 throughout France 

 as a chemist. Shortly 

 after this he became interested in bacteria, and it was in the field 

 of bacteriology that he became most famous. First as professor at 

 Strasbourg, then at Lille, and later as director of scientific studies 

 in the ficole Normale at Paris, he showed his interest in the ap- 

 plication of his discoveries to human welfare. 



In 1857 Pasteur showed that bacteria are connected with the 

 process of fermentation, and that it is not a purely chemical 

 h. bio — 43 



What are some of the discoveries for which Louis Pasteur is 

 noted ? 



