94 



RELATIONSHIPS OF THE COCCACE^E 



second subgroup which raises the average value forthe genus. 

 One of the most striking points about the curve is the 



i Bhodococcus 



-.0025 



.0025 



.0075 .0125 .0175 .0225 



Normal Acidity 



.0275 



.0325 



.0375 



Fig. II. — Acid Production of certain Genera of the Coccacese in 

 Dextrose Broth. 



tendency exhibited to tail off very gradually toward ex- 

 tremely high acidities, — a phenomenon due, of course, to the 

 presence of subgroups of very great fermentative power. 



