64 THE PROTEINS OF THE WHEAT KERNEL. 



TABLE 15. Composition of protein extracted by dilute alcohol. 



1 Omitted in average. 



PROPORTION OF GLUTAMINIC ACID YIELDED BY VARIOUS FRACTIONS 

 OF THE ALCOHOL-SOLUBLE PROTEIN. 



The results of this extensive fractionation of the alcohol-soluble protein 

 give no evidence, based on the ultimate composition of the many fractions, 

 of the presence of more than one protein substance. This, however, does 

 not justify the conclusion that only one such substance exists. In view of 

 the recent positive statements of Kossel & Kutscher and of Konig & Rintelen 

 it is important to obtain, if possible, further evidence based on the propor- 

 tion of some of the decomposition products yielded by the various fractions 

 of this protein. As gliadin yields a relatively large amount of glutaminic 



