A GENETICO-rHYSIOLOCtIC.\L STUDY ON THE F. iJiMATlDN ETC. 



31 



1. A beautiful retluction coloiu is partially due to hesperitlin which is present in the rinp 

 of oranges and by reduction, yields a marked reduction-colour hke tiavones. This information, 

 the \vri er owes to the kindness of Prof. K. Shibatn. 



