314 REPORT 4, UNITED STATES ENTOMOLOGICAL COMMISSION. 
and the receptacle,/, will run on the ground between the rows. As the apparatus is 
drawn forward the plants pass beneath the bar, &, one row at each side of the bar, h, 
and pan, /, and the rows will be gathered together and bent down beneath the wings. 
The flappers will shake the plant and the larvae will be rubbed and shaken off into 
the receptacle. 
The Iske Sweeper and Stifler. — u This was patented by Mr. Anthony Iske, 
of Lancaster, Pa, (No. 173728), in 1876. 
"It consists of an upright frame,. open beneath, with two wheels in 
front, and is drawn over one row of plants at a time. A row of brushes, 
made of broom-corn or of any other suitable material, is fastened to a 
longitudinal beam, which is adjustable to the height of the plants and 
agitated by a contrivance similar to that in Mr. Ewing's machine. The 
worms dislodged by the action of these brushes fall in two canoe-shaped 
trays, which are supported by swinging arms, and slide along one on 
each side of the row of plants close to their base. On the outer side of 
each, these trays are provided with a smooth inclining shelf, which dips 
into the tray, and with a vertical backboard in order to prevent any 
worms from being beaten beyond these trays. In using this machine it 
is necessary to smear the trays with tar or coal-oil." 
Other Catching-trays. — " Finally, having proved that the least touch of 
kerosene is as fatal to the cotton worm as it is to so many other insects, 
I have no hesitation in recommending as a cheap substitute for these 
brushing-machines, where youthful labor is abundant, the use of sheet- 
iron pans, over the bottom of which kerosene or coal-tar is spread. They 
proved very successful in 1877, when the Western farmers were con- 
tending with young locusts ; and, drawn between the rows of cotton, 
while the worms are being brushed off in the manner recommended by 
Mr. Hoyt, they would prove equally satisfactory when the weather is 
not sufficiently hot and dry to insure the death of the w r orms otherwise. 
Or a still simpler arrangement might be adopted, viz : a cloth stretched 
on a frame that will draw between the rows and kept saturated with 
kerosene." 
TRAPS FOR THE MOTHS. 
While the foregoing devices aim at destroying the pest in its earlier 
stages, these are specially for capturing the parent forms — the moths. 
The moths are attracted in three ways: I. By lights which have on 
them an alluring effect; 2. By odors associated with the sweets of 
vrhich fche.v are fond, and 3. By both of these attractions combined. The 
causes of this attraction and other points connected with it have already 
been discussed in chapter XII, so we shall pass fo the discussion of the 
various traps invented. 
LIGHT TRAPS. — "The following enumeration of lamps for attracting 
and killing the moth is by no means a complete one. Some of the inven- 
tions are no longer used, and descriptions or samples of them unattain- 
able; others are mere copies of such as aie here described, and are 
