PRODUCING A NEW COLOR 305 



the mouse; and that these are mutually depend- 

 ent on one another in an intricate fashion, the 

 full explanation of which would give us a far 

 clearer comprehension of the mysteries of the 

 color transformation in the poppy and in other 

 flowers than anyone can claim to have at present. 

 It is because of the new light they throw on 

 this problem that experiments that led to the 

 production of a blue poppy seem to have unusual 

 interest and importance. But long series of 

 additional experiments involving much expense 

 and many discouragements will be necessary be- 

 fore the exact relations of the different pigments 

 in the poppy, or in any other flower, will be fully 

 understood. 



