236 



EXPERIMENT STATION. 



[Jan. 



Experiment XYII. 



Starlight Niglit Exposures ivitli Still Older Plants, May 1. 



Fumigation with .015 gram KCN per cubic foot; plants 

 five weeks old ; amount of sunlight the day of treatment, 8.7 

 hours ; conclusions drawn after one week. 



Experiment XVIII. 



Sl((i'lifjlit Xir/ht Exposures irifli Old Phuds, May 1Jf. 

 Fumigation with .015 gram KCN per cul)ic foot; ])lants 

 seven weeks old; amount of sunlight the day of treatment,. 

 11.5 houi's; conclusions di-awii after one week. 



