36 MICRO-ORGANISMS AND DISEASE. [CH. vi. 



(2) bacteria or microbacteria ; (3) bacilli or desmobacteria ; 

 (4) spirilla, (5) spirochsetoe. There are also various kinds 

 which approach one or the other of these, e.g. ascococcus, 

 sarcina, leptothrix (Beggiotoa), cladothrix, streptothrix, &c. 

 (see below). 



I shall not attempt to give an exhaustive description of the 

 morphological characters of all micro-organisms, but shall limit 

 myself to those forms which are related in some way. or other 

 to diseases. 



