HYDROGEN ION CONCENTRATION AND PROTEOLYSIS. 173 



Graphic Representation (2) 

 Tableau 



^^C/ieek) 



o Z^ ¥B 



^'^a h'oor-s 



Table XI. and Graph 2 indicate the following Ph in the media: — 

 1. Alteration of Ph in the media occurred within the limit of Ph 4 to 

 10 in the course of growth; that is, 



Ph =4.82 changed to Pr =7.89 ' 



Ph =.'i.42 changed to Ph =8.19 



Ph =6.42 changed to Ph =8.16 \ average Ph =8.076. 



Ph =8.17 changed to Ph =8.13 



Pii =9.4.3 changed to Pii =8.01 j 



