292 PHYSIOLOGY OF BACTERIA 



Table 83. — Variability op Death Rate op Bact. paratyphosum 



In this experiment, the older cultures seem more uniform, with 

 less spread than the young cultures; the only exceptional experiment 



Fig. 34. — Survivors of Bacterium paratyphosum from cultures of different age, 

 drawn on standard scale. 



is that of a twenty-four hours old culture which was considered 

 abnormal by Reichenbach. The figures in parentheses are unusual 



