Methods of Studying Bacteria. 23 



the inoculation of pure cultures into animals. A great 

 many different methods have been devised for the pur- 

 pose of studying special characteristics of different bacteria, 

 but a full description of these would necessarily be so 

 lengthy that in a work of this character they must be 

 omitted. 1 



i The following general works contain more or less complete descriptions of 

 the various processes employed in studying bacteria: 



Sternberg, Manual of Bacteriology, 1898; Frankel, Bacteriology, 1891; Wood- 

 head, Bacteria and their products, 1893; Abbott, Principles of Bacteriology, 

 1896; Pearmain and Moor, Applied Bacteriology, 1897; McFarland, Text-Book 

 upon Pathogenic Bacteria, 1898. 



