258 



BACTERIOLOGICAL METHODS 



The following table gives the efficiency value of some dis- 

 infectants. It will be seen that this value is of necessity variable, 

 depending upon the variation in the market price of the disinfec- 

 tants. It will also be seen that in the proposed rating the re- 

 markably high coagulation coefficient of some of the more im- 

 portant chemical disinfectants lowers the efficiency value 

 greatly. 



Efficiency Values of a Few Disinfectants 



