1910.] 



PUBLIC DOCUMENT — No. 31. 



231 



Experiment VII. 



Cloudy Day Exposures with Older Plants, May 8. 



Fiimigation with .02 gram KCj^ per cubic foot ; plants 

 forty-seven days old ; amount of sunlight the day of treatment, 

 eight hours ; plants watered the day before treatment ; conclu- 

 sions drawn after one week. 



ExPEEIMEKT VIII. 



Moonlight Night Exposures, March 20. 



Fumigation with .01 gram KCN" per cubic foot ; plants 

 eight days old; amount of sunlight the day of treatment, nine 

 and a half hours ; conclusions drawn after one week. 



