Isolation 



353 



Fig. iig. — Bacillus tetani. X looo (Frankel and Pfeiffer). 



Fig. 120. — Bacillus tetani; six-day- Fig. 121.-=— Bacillus tetani; culture 

 old puncture culture in glucose-gelatin four days old in glucose-gelatin (Frankel 

 {Frankel and Pfeiffer) . and Pfeiffer) . 



23 



