168 



BACTERIOLOGY 



Infection experiments performed on different animals 

 by inoculation and inhalation, as well as by admission 

 through the digestive track after previously neutralising 



Liquefaction 

 Air-bubble 



Canal of inoculation with fibrous 

 processes 



FIG. 65. THRUST-CULTURE IN GELATINE OF THE ANTHRAX BACILLUS (FOURTH DAY). 



the gastric juice, result in the death of the animal before 

 forty-eight hours have elapsed ; but in the case of frogs 

 infection is successful only when the animals are kept at a 



