36 



since in every case Laurent used media which contained either 

 saccharose or glycerine, and in which the initial alkaline reaction 

 had only the effect of neutralizing the acid produced by the organism 

 from these substances, his results prove nothing definite as to the 

 reaction best for non-fermentable media. As, also, the results of 

 Kuntze (46), Noesske (18), Luckhardt (16), and Sulli- 

 yan (20) upon B. prodigiosus in non-proteid media have dis- 

 agreed, the following tables of experiments on the Prodigiosus 

 series will be of interest 1 ). 



Table VI. 



1) The water used in these solutions was redistilled in glass. The inocu- 

 lations were made in flasks of Jena glass previously cleaned in acid and rinsed 

 repeatedly in distilled water. The reaction was neutral to phenolphthalein. 



