14 BULLETIN 907, U. S. DEPARTMENT OF AGRICULTURE. 
EXPERIMENT 17. e 
Condition during fumigation, shade, 60°-62° F. 
Condition before fumigation, dark, 64° F. 
Dosage, 1 ounce NaCN. 
Date, Sea munld: 21, 1915, 6. 50-7.35 a. m. 
Plants in each test, 5; total, 20. 
Results. 
Condition after fumigation. 
Dark, 64° F.1 Dark, 80° F.2 | Shade, 70° F.3 | Sun, 71° F.8 
2 2 2 + 
1 Temperature 64°-68° F. throughout the day. 
2 Temperature 80°-91° F. during the day 
3 Temperatures equal throughout the TES maximum 94° F, at 1 p. m. 
EXPERIMENT 1s. 
Condition during fumigation, shade, 85°-89° F. 
Dosage, 1; ounces KCN. 
Date, March 15, 1915, 11.20-12.20 p. m. 
Plants in each teat, 2; total, 24. 
Remarks: Growth asin experiment 14. Plants placed in fumigatorium at tempera- 
ture 70°-75° F. which was immediately raised to and maintained at 85°-89° F. during 
fumigation. 
results. 
Condition after fumigation. 
Condition before 
fumigation. Dark, Shade, Shade, Sun, 
56°F. | 79°F? | 90° FS | 85° Fi 
Sennett ee ne 
1 Temperature practically uniform for day following treatment. 
2 Maximum temperature, 80° F, 
3 Temperature, 90° F. maintained for 4 hours. 
4 Maximum temperature, 86° F. at 1.30 p. m. 
EXPERIMENT 19. 
Condition during fumigation, shade, 78°-80° F. 
Condition before fue shade, 76° F. 
Dosage, 14 ounces NaCN. 
. Date, November 2, 1917, 9.20-10.20 a. m. 
Plants in each test, 2; total, 6. 
Remarks: Plants hardened from growth in open. 
Results. 
Condition after fumigation. 
Shade, 74° F.1] Shade, 87° F.2| Sun, 87° F.2 
2 2 5 
1 Maximum temperature, 80° F. at 2 p. 
2 Maximum temperature, 93° F. ati. 
