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pulverized, and through this a deep furrow was afterwards made 
by dragging a log endwise. The sides of the furrow were as 
steep as they could be made without caving in. The wheat was 
cut the following day (June 28) and the chincli-bug hosts started 
for the corn field. Their advance was completely checked for a 
time, and they accumulated in great numbers in the furrow. 
Mr. Marten visited this field June 29. The furrow was then in 
fair condition, and contained myriads of bugs endeavoring to 
escape. There were many insects in the wheat stubble and in a 
narrow strip of grass between the wheat and corn, but compara¬ 
tively few r on the latter crop. 
No provision had been made for the destruction of the bugs in 
the furrow, and a slight rain June 30 breaking down the sides, 
in a short time the traveling horde made good its escape, almost 
completely destroying the corn as it advanced. 
No. 8. This is a furrow experiment, made by Mr. James Smith, 
of Farina. About June 28, just before wheat harvest, Mr. Smith 
abandoned his contagion box and plowed furrows between wheat 
and corn, wheat and oats, and oats and corn. The furrows were 
made about eight inches deep with a shovel plow. A log drawn 
by one horse was dragged back and forth through these furrows 
for about a week. Myriads of bugs were crushed, and many died 
from exposure to the heat as they were confined ia the furrows. 
Very few bugs crossed these ditches into the corn, and less than 
a quarter of an acre was injured by their attacks. A slight shower 
had fallen soon after the log was started, stopping operations for 
a short time, and a considerable number of chinch-bugs then 
passed the furrow, but the ditches were opened again as soon as 
possible, and the dragging was resumed. 
At the time of Mr. Marten’s visit, July 11, the log had not been 
used for several days, and the bugs were crossing the ditches in 
great numbers and were accumulating on the corn, where they did 
considerable damage later in the season. 
No. 9. This is a barrier experiment conducted by Mr. C. M. 
Filson, of Xenia, in corn adjoining wheat which was cut June 15. 
The chinch-bug horde came into the corn immediately and ruined 
ten or twelve rows. Mr. Filson thoroughly pulverized a narrow 
strip of ground in the twelfth row on the south side of the field, 
and along the outer edges of the east and west sides, and through 
this a log was dragged until a deep furrow was made the entire 
length of Ihe three sides. Post-holes were then dug in the furrows 
about ten feet apart, into which the traveling bugs fell in great 
numbers, where they were destroyed with kerosene emulsion or by 
crushing. While the furrows were in process of construction quite 
a number of bugs succeeded in crossing the ditch and accumulated 
on the first two or three rows beyond. These were destroyed with 
kerosene emulsion, applied by means of a brusli-like broom, made 
of prairie grass, dipped into a pail containing the emulsion and 
shaken over the bugs on each hill. Many fell on the 
ground during this operation and were killed by the emulsion. 
The furrows were kept in good condition for two weeks. The 
