PLATE I. 



FOOT AND MOUTH DISEASE. 



Fig. a. 



I. C 



t 



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.. it^ 



•*- K \ 





-b . 



a/ 



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Fig. a. From a microscopic specimen of an artificial cultivation of 

 the Streptococcus in broth, after three days' growth at 36° c. a Diplo- . 

 coccus. h Short chains. c Complex chains, due to longitudinal 

 division of the cocci of a chain. 

 Magnif. power about 1'250. 



Fig. B. From an artificial cultivation of the Streptococcus of Foot 

 and Mouth Disease in Agar- Agar mixture of several weeks' growth. 

 a Simple Streptococcus — here and there in it a coccus conspicuously 

 larger than the rest, h Branched Streptococcus, c Streptococcus with 

 indication of longitudinal division of the cocci. 



Magnif. power about 1250. 



