IS?-*' 



ffpfl 

 *% . 



BACILLUS OF PLAGUE (B. PESTIS 

 BUBONICCE) 



(From liver of rat) 



X TOCO 

 Bv permission of the Scientific Fress^ Limited 



BACILLUS OF LEPROSY (HANSEN) 



(From the tissues of a leper) 

 X 1000 



STREPTOTHRIX ACTINOMYCES 

 (RAY FUNGUS) 



X 700 



BACILLUS MALLEI (GLANDERS) 



X looo 



