PLATE 30. 



mm. 



i 



Bacillus leprce. 



Discharge from sore of leper. Stained by 



Ziehl-Neelsen method. 



x 1000. 



Bacillus leprce. 



Lepra cells containing bacilli. From lobule of ear of leper. 



Stained by Ziehl-Neelsen method. 



X 1000. 



Bacillus of Plague (B. pestis bubonicce). 



From liver of plague-stricken rat. 



x 1000. 



Staphylococcus pyogenes aureus. 

 x 1000. 



[To face page 398. 



