SPORULATION 15 



1 8 C. Anthrax spores have been known to resist the germicidal 

 action of a 5 percent carbolic acid solution for forty days. 



Babes-Ernst granules, or polar bodies are found in certain 

 bacteria (Mycobacteriaceae, etc.) after staining with special basic 

 stains. In the complex forms of bacteria, they evidently have an 

 important role in reproduction. The presence of such bodies in the 

 poles of diphtheria bacilli facilitates the recognition of these organ- 

 isms. (Fig. 14.) 



FIG. 14. Pest bacilli showing capsules. (Kolle and Wassermann.) 



tf Capsules. Certain well known pathogenic bacteria have thick 

 well marked capsules. The pneumococcus, pneumobacillus, and 

 Bacillus aero genes capsulatus, are well known examples of such 

 capsulated organisms. The capsule is not always constant. It 

 often disappears when the organism is grown in culture media, 



(Fig. 15.) ^ -_ 



teria are those from the Mycobacteriacea up to the 

 feasts and moulds./ They are higher than the Bacteriacea because 

 they tend to form truly or falsely branching filaments and specialized 

 segments, gonidia, which may behave as sex organs. Few of them 

 are pathogenic, except in the genera Mycobacterium and Strepto- 



