890 



7. MERCURIALS 



250 



SEC 



Fig. 7-36. Effects of Hg++ at different concentrations on lumines- 

 cence of Achromohacter . (From Houck, 1942.) 



LUMINESCENCE 

 RESPIRATION 



1/4 1/9 1/16 1/32 1/64 



DILUTION OF CELL SUSPENSION 



Fig. 7-37. Effects of dilution of the Achromobacter sus- 

 pension on the inhibitions of respiration and lumines- 

 cence by Hg++. (From Houck, 1942.) 



