OD 
cessive strokes of the pump. The heat was sufficient to scorch the 
hairs from the back of the hand at twelve inches from the burner, 
and to burn in two in thirty seconds a stalk of corn held four inches 
from the nozzle. 
In the first plat the flame was passed steadily upward for a foot 
along the stalk at the rate of about two feet per second, this flaming 
process being four times repeated for each side of the hill with the 
nozzle held an inch or less from the plant. Each plant was thus 
exposed to the blast for four seconds in all, a half a second each 
time. Two days later some of the bugs were dead, but many were 
still alive, and many stalks of corn were seriously injured, scarcely 
a hill in the plat having wholly escaped scorching. In some hills 
the large leaves were burned, and in nearly all the lowest leaves were 
visibly scorched. 
This experiment was repeated on another plat except that the 
tube was held about four inches from the plants. Two days later 
the corn was less injured than in plat one, but nearly all was scorched 
more or less, especially the upper leaves. Some of the bugs were 
still alive, probably those which fell to the ground and escaped and 
those secluded beneath the sheaths of the leaves. 
In another plat the treatment was varied by flaming the bugs 
at the base of the plant as they fell upon the ground, using on an 
average two seconds additional for each hill. The torch was handled 
about as in the first experiment, and the plants were similarly in- 
jured. The hardened cuticle at the base of the stalk was less likely 
to be scorched than the green and tender leaves. The bugs were 
nearly all destroyed on this plant, although a few were still alive the 
following day. 
By other experiments it was found that by two or three treat- 
ments, separated by intervals sufficient to allow the escaping bugs 
to collect again, the corn might be almost completely cleared of 
bugs, but, unfortunately, without the most painstaking care injury 
to the plants was such as to make this form of treatment quite in- 
admissible. 
The cost of these operations was considerably less than the cor- 
responding treatment with kerosene emulsion. The time required 
was practically the same, but the cost per acre was thirty-four cents 
for the emulsion and fifteen cents for the gasoline. 
It was Mr. Taylor's judgment that two treatments with a four 
per cent, emulsion would have about the same effect upon the bugs 
as three applications of the torch, but the latter is more convenient 
to use, requiring no previous preparation of the fluid and no hauling 
of water to the field. The risk of injury to the corn is of course 
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