18 ART. ö. — ï. ICHIMUKA : 



flowers. The cliemical process that occurs in the conversion of 

 protanthocyan into coloured anthocyan is, however, not yet 

 cleared up. 



In conclusion, I wish to express my obligations to Prof. 

 Miyoshi for his helpful advice during the course of my investigation. 



March, 1902, Fourth High Hchool, Kanazawa, Japan. 



