DUST AND BACTERIA. 



12$ 



Bacillus of "Diphtheria (x lOOO) 



Bacillus of Tuberculosis (x 1000) 



Bacillus of Typhoid Fever (x 1200) 



Bacillus of Typhoid Fever (x 1200) 

 showing flagella 



Bacillus (Spirillum) of Asiatic Cholera Bacillus of Hog Cholera (x 1000) 



Fig. 48. Types of Bacilli, showing Morphologic Characters and Arrangement. 



