6 BULLETIN 907, U. S. DEPARTMENT OF AGRICULTURE. 
EXPERIMENT 5. 
@ondition during fumigation, dark, 64°-66° F. 
Condition after fumigation, dark, 60° F. 
Dosage, 14 ounces KCN. 
Date, May 17, 1916, 6.07-6.57 a. m. 
Plants in each test, 7; total, 14. 
Results. 
Condition before fumigation. 
Dark, Dark, 
64°-66° F. 90°-102° F.1 
15 hours before fumigation temperature raised from 70° to 90°-102° F. 
EXPERIMENT 6. 
Condition during fumigation, dark, 60° F. 
Condition after fumigation, shade, 64° F. 
Dosage, 14 ounces KCN. 
Date, March 30, 1916, 9.37-10.27 a. m. 
Plants in each test, 5; total, 15. 
Results. 
Condition before fumigation. 
Sun, 67° F., Sun, 67° F., 
Sun, 67° F., plants wet, plants wet, 
plants dry. water temper- | water temDer- 
ature, 58° F. ature, 86° F. 
Sg Rear ee Phas 
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EXPERIMENT 7. 
Condition during fumigation, dark, 72°-73° F. 
Condition after fumigation, shade, 65° F. 
Dosage, 1 ounce NaCN. 
Date, October 7, 1915, 12.10-12.50 p. m. 
Plants in each test, 5; total, 15. 
Remarks: Plants exposed to the sunshine for several hours, then wet. thoroughly 
immediately before fumigation. 
Results. 
t 
Condition before fumigation. 
Sun, 80° F., Sun, 80° F., 
Sun, 80° F., plants wet, plants wet, 
plants dry. water temper- | water temper- 
ature, 64° F. ature, 96° F. 
4 3 4 
All dry plants had the mature foliage quite severely burned, while only 3 of the 5 
hot-water-treated plants were equally severely affected. None of the plants treated 
with cold water were as severely injured as where dry. 
