MECHANISM OF DEATH 



359 



that the value given is not an average, but is the only 

 datum available. 



Table 113. — Disinfection op Micr. pyogenes aureus with HgCl2 



Figure 41 gives these data in graphic form. The 

 logarithms of time were chosen for plotting to make the 

 relations more outstanding. The two limiting times 

 for each concentration are connected by lines. The 

 correct point must be somewhere between these limits. 

 This graph resembles very much that of Fig. 36, and 

 the influence of Qio is here substituted by that of n. 

 The slope of the curve is an indicator of the magnitude 

 of n. 



In solutions above 0.05% HgCU, the resistance of the 

 bacteria was not affected by the concentration of the 

 poison, unless the bacteria were treated with an antidote 

 This indicates the formation of a chemical combination 

 of the protoplasm with the mercury salt which prevents 



