vii.] MICROCOCCUS. 87 



15. Micrococcus of foot-and-mouth disease. In the vesicles 

 of sheep ill with this disease I find a micrococcus, singly, 

 in dumb-bells, and in curved chains. It stains well with the 

 ordinary aniline dyes. It grows well in milk, in alkaline 

 peptone broth, in nutrient gelatine and in Agar-Agar mixture. 

 Growing on solid material its growth, besides being extremely 

 slow, is very characteristic, it forms a film composed of 

 minute granules or droplets, closely placed side by side, but 

 not confluent. It is highly sensitive towards antiseptics. It 

 does not liquefy nutritive gelatine, and in liquids does not 

 form a pellicle, but nevertheless when grown on solids, its 

 growth remains limited to the surface. It does not curdle 

 milk, although it turns the reaction of this latter slightly but 

 distinctly acid. 



