1010.] 



PUBTJC TXICUMENT — No. 31 



235 



Sbt Numbeks. 



:t 



Age of plants (days), 

 Time of exposure, 

 Lengrth of exposure, 

 Temperature (degrees), . 

 Amount of sunliLjlit for tl:iy, 

 White splue, 

 Hothouse, .... 



69 



8.10 

 Ih. 



0;$ 

 10 h. 



N 

 N 



72 

 8.15 

 IVa li- 

 es 



3.8 h. 

 SB 

 SB 



80 

 8.20 

 1% h. 

 62 



2.7 h. 

 SB 

 SB 



8.00 



3 1i. 

 62 



6.8 h. 

 SB 

 SB 



97 

 8.00 

 3h. 



12 h. 

 SB 

 SB 



Experiment XV. 

 Siarliglii Night Exposures iritJi Stronger Fumigation, April 11. 

 Fumigation with .015 gram KCN per cuLic foot; plants 

 nineteen days old ; amount of snnlight the day of treatment, 

 eleven and a half hours ; conclusions drawn after one week. 



Set Numbers. 



Time of exposure. 

 Length of exposure, . 

 Temperature (degrees), 

 Humidity (degrees), . 

 Wliite spine. 

 Hothouse, . 



7.00 

 30 m. 

 70 

 59 



7.45 

 45 ni. 

 69 

 63 



N 

 N 



8.45 

 Ih. 



69 

 63 



N 

 N 



Experiment XVI. 



Starlight Night Exposures ivith Older Plants or Longer Ex- 

 posures. 

 Fumigation with .015 gram KCIST per cubic foot; amount 

 of sunlight May 13, nearly twelve hours; not taken on the other 

 days ; conclusions drawn after one week. 



