214 MICROBIOLOGY 



With the exception of M. pyogenes these micrococci are 

 not known to be of significance in the cause of naturally con- 

 tracted diseases in lower animals. 



OTHER MICROCOCCI. 



Micrococci resembling more or less M. pyogenes or its 

 varieties have been found in many lesions either alone or asso- 

 ciated with other bacteria, The descriptions of some of these 

 are so brief that it is impossible to identify them. In the study 

 of animal diseases numerous micrococci are liable to occur in 

 the cultures but usually they are secondary invaders. 



