218 



EXPERIMENT STATION. 



[Jan. 



In addition to the effects noted, the sprinkled plants de- 

 veloped white spots where the drops of water stood, and in 

 general were in worse condition than the others. 



EXPEKIMENT IV. 



Day Exposures during Rain, Snowstorm and Cloudy Weather, 

 January 12 and 13. 

 Fumigation with .02 gram KCN per cubic foot; plants nine 

 weeks old ; set 1 treated during a rainstorm ; sets 2 and 3 during 

 a snowstorm and set 4 during cloudy weather ; no direct sunlight 

 either day ; plants of set 1 watered the day before the test ; the 

 others, the morning of the test, but dry when treated ; conclusions 

 drawn after three days for the first set; after six days for the 

 second and after nine days for the third and fourth sets. 



Set Numbers. 



Time of exposure, 

 Length of exposure, 

 Temperature of house (degrees) 

 Humidity before (degrees). 

 Humidity after (degrees), 

 Livingston, .... 



Lorillard 



rreedom 



Experiment V. 

 Nigltt Exposures, Dece-mher 13. 

 Euniigation with .005 gram KCN per cubic foot ; jilants six 

 weeks old ; house humidity, 60° ; six hours of sunlight the day of 

 treatment, l)ut cloudy the preyious week ; weather cloudy during 

 the treatment of the first three sets ; moonlight during the other 

 two; treatment began on set 1 as soon as it was really dai-k ; 

 plants watered at 9 A.:\r., dry when treated ; half the plants of 

 each variety liad been i)laced under benches for thirty hours 

 before treatment ; conclusions drawn three weeks after treat- 

 ment. 



