220 



EXPERIMENT STATION. 



[Jan. 



Experiment VII. 



Night Exposures, Decemher 15 and March 15. 

 Fumigation with .015 grain KCN per cubic foot; plants six 

 weeks old; house humidity, 83° ; dusk during treatment of first 

 set, cloudy during second and third sets, starlight during the 

 last three sets; plants watered at 8 a.m.; half of each variety 

 sprinkled before treatment, the others dry ; conclusions drawn 

 one week after treatment for set 5, three weeks after treat- 

 ment for the others. 



Set Numbers. 



« 



Time of exposure, 

 Length of exposure, . 

 Temperature of house (degrees), 

 Livingston normal, 

 Livingston sprinliled, 

 Lorillard normal, 

 Lorillard sprinkled, . 

 Freedom normal. 

 Freedom sprinkled, . 



4.45 

 10 ni. 

 C5 

 SI 

 N 

 SI 

 N 

 N 

 N 



5.45 

 20 m. 

 65 

 X 

 SI 

 SI 

 SI 

 SI 

 SI 



7.20 

 30 m. 

 64 

 SI 

 SI 

 SI 

 SI 

 SI 

 SI 



8.30 

 45 m. 

 65 

 C 

 (J 

 C 

 C 



c 

 c 



7.30 

 Ih. 



58 



C 



C 



c 

 c 

 c 

 c 



9.55 

 2li. 



65 



K 



K 



K 



K 



K 



K 



The sprinkled plants showed spots on the leaves where the 

 drops of water stood, as a result of the treatment; otherwise 

 little difference in the two lots was noticeable. 



Experiment VIII. 



Night Exposures, January 8. i 



Fumigation with .015 gram KCN per cubic foot; plant? 

 eight weeks old; house humidity, 84°; amount of sunligh| 

 tne . (lay, four hours; plants watered at 10 a.:\i., dry whe'' 

 cadwo; \i\ night cloudy during the treatment; conclusions drawi 



nintlants-.v^e week. 

 Aveeks i<y.ari^ 

 third set. ^itniei. 



