PLATE I. 



FIG. 1. 



FIG. 2. 



Tubercle bacilli, in red. 

 Streptobaeilli, in blue. 



X 11OO diameters. 



Tubercle bacilli, in red. 

 Tissue, in blue. 



X HOO diameters 



FIG. 3. 



FIG. 4. 





Leprosy bacilli in nasal secre- 

 tion of person suffering from 

 nasal lesions. (Hansen.) 



Short smegma bacilli. 



Bacilli in specimen are red, 



rest of material in blue. 



X 3OO diameters. 



11OO diameters. 



