672 



F. W. GAMBLE AND F. W. KEEBLE. 



Table IV. — Weed Colour Experiment 4. 



August 8thj 1898. — Experiment made with a cylindrical 

 glass jar filled with Delesseria sanguinea and placed 

 on grass in the open. First half-hour bright, very dull 

 subsequently ; water circulation maintained during expe- 

 riment. Commenced 12.20 p.m. 



