276 



PHYSIOLOGY OF BACTERIA 



Fig. 27. — Order of death of Bacterium typhosum exposed to 49", 



^5" 35" ffS SS TninuieS fS* 



Fig. 28. — Order of death of Drosophila exposed to 39.45°. The black line 

 in figures 27 and 28 demonstrates the numbers of survivors; the black blocks 

 represent the organisms dying per unit time (1 and 5 minutes respectively). 



