Isolation 



341 



Fig. 122. — Bacillus tetani. X 1000 (Frankel and Pfeiffer). 



r- ■ 



I; 



■iSM 



Fig. 123. — Bacillus tetani; six-day- Fig. 124.— Bacillus tetani; culture 

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

 (Frankel and Pfeiffer). and Pfeiffer). 



