400 



MECHANISM OF GRANULAR GROWTH 



pHls 



Fig. 2. 



acid agglutination optimum zone. This is clear from the fact that 

 small amounts of beef infusion do not cause a flocculation independent 

 of the Ch+. 



Suspensions of Types D and G were similarly tested against de- 

 creasing concentrations of peptone (Fairchild) at various Ch+. The 

 technique of the experiments was identical with that for beef infusion. 

 The peptone solution from which the various dilutions were made 



TABLE IV. 

 Peptone Agglutination of Microbe G at Varying Ch+. 



