46 



PRACTICAL BACTERIOLOGY. 



ger, after thorough cleansing of the parts, and allowed 

 to dry on firm white paper or on a slide. The above 

 method can then be carried out. 



Cabot advises an excellent method for bedside 

 examination. With a medicine dropper, one drop of 

 blood from the patient is added to 30 (or more) drops 

 of broth culture, or emulsion of Typhoid bacilli. Drops 

 from this dilution are then examined in hanging drop 

 preparations. 



7. Make inoculations of Bacillus pestis bubonic£e 

 and Bacillus icteroides on, 



(a) agar tubes; 



(h) gelatine (slope) tubes; 



(c) broth tubes. 



Inoculate with Bacillus mallei, 



(a) an agar tube; 



(b) a potato tube. 



Examine these tubes from day to day, noting char- 

 acters of growth. 



