18 



LOGARITHMIC ORDER OF DEATH 



TABLE 1 



Mortality and death rate constants of different organisms dying 

 under the action of various killing agents. 



(Data on fruit flies, by Loeb and Northrop, 1917; on mustard seeds, 

 by Hewlett, 1909; on flour beetle, by Davey, 1917; on Bad. coli (heat), 

 by Watkins, 1932; on Bact. paratiiDhosivm, by Chick, 1908; on Bad. coli 

 (light), by Clark and Gage, 1903). 



Time of 

 exposure 



Number 



of 

 survivors 



Mortality per 

 time interval 



Indiv- 

 iduals 



dead in 



% of 

 survivors 



Time of 

 exposure 



Number 



of 

 survivors 



Mortality per 

 time interval 



Indiv- 

 iduals 



dead in 



%of 



survivors 



Death by poisons 



*See footnote on p. 20. 



