ROBERT KOCH 



Bom at Rlauithal, in Hano\er, Germany, 1843 ; died at 

 Baden-Baden, loio. One of the greatest investigators of tlie 

 disease-producing bacteria, man_\- of which he first discovered 

 by means of methods that he devised. Among his discoveries 

 are those of the organisms which cause tuberculosis and Asiatic 

 cholera. 



