242 FUMIGATION METHODS 
fumigation to the nurseryman, as compared with the 
cost to the grower, for spraying, etc., is very small. 
Of course a system of fumigation will not do away 
with the necessity of spraying in orchards, but it will 
greatly decrease the loss that growers now sustain 
from the attacks of various inse¢ts.—Prof. FRANKLIN 
SHERMAN, Jr., State Entomologist, North Carolina. 
North Dakota fumigated palms.—Owing to the fact 
that the number of fruit trees grown in this state is 
very small, and that scale and other insects have not 
yet appeared, its use has not become general. I have 
used the gas with very satisfactory results at this sta- 
tion to kill the scale on palms. I have known of its 
use with equally good results in the destruction of bed- 
bugs in houses.—C. B. Wa.pron, orth Dakota 
Agricultural College. 
New Jersey.—Personally I have done so little with 
the hydrocyanic acid gas that I do not consider my- 
self entitled to any opinion as to its value, z.e., no 
opinion formed as the results of original work. The 
truth is, I never like to duplicate another man’s work, 
and as you have been doing the fumigation line most 
thoroughly I was willing to accept your results, de- 
voting my time to other lines of investigation.—Dr. 
Joun B. Smiru, State Entomologist, New Jersey. 
New York.—I have not had much experience in the 
use of hydrocyanic acid gas on nursery stock, but from 
what I have used and from what I know of it in other 
respects, it seems to me to be one of the very best and 
perhaps the only satisfactory method of treating young 
trees for the purpose of killing insect pests upon them. 
