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opportunity to fully test. It consists of two large tin tubes (PI. v, Fig. 
2, AA), about 8 inches in diameter, with flattened, expanded, and lipped 
mouthpieces, B, running near the ground. This horizontal opening or 
mouth is about 7 feet long. The tubes connect at the upper extremity 
with a chamber, G, in which is a revolving fan which makes about 1,200 
revolutions per minute. The tubes and fan, with the gearing, are placed 
in a frame, D, 5 by 10 feet, mounted upon two large driving wheels. EE 
PL VI represents this machine in operation. 
The air current made by the revolving fan creates a suction at the 
mouth, which draws the insects up the tubes and into the chamber. 
They are then thrown by the fan upon a wire screen, and from thence 
drop into a kind of hopper which conducts them to a bag. The wire 
screen rapidly chokes up and must be frequently cleaned. Most of the 
locusts are crushed and mangled by the rapidly revolving fan, so that 
the screen may be removed entirely and the locusts thrown out behind. 
This allows a freer draft and causes a greater suction. This machine 
can be made for about $50, and it works well on smooth ground or in a 
wheat Held while the wheat is yet short. It is somewhat difficult to keep 
the lips close enough to the ground. The principle of the machine is a 
good one, aud we see no reason why some cheaper modification of it 
should not be quite generally used early in the season, especially in Colo- 
rado, where there is so much hard, smooth ground around the cultivated 
fields. The lips might be protected and rendered less liable to bend and 
get out of order by moving on runners made to extend some distance in 
front. 
Finally, a machine which we saw in Colorado, and which was put 
up by J. S. Flory, of Greeley, Colorado, is worthy of mention in this 
connection ; for, while it may be used with coal-tar, it is essentially a 
catching and crushing machine. The Colorado Sun thus speaks of it : 
The main feature of this invention is a revolving platform of heavy canvas or wire 
cloth, which runs between two horizontal rollers. Long arms reach forward, which 
support a revolving reel ; from these arms downward extend sheet-iron sides, over the 
top a canvas covering ; all so constructed as to form a large wide mouth, into which 
the 'hoppers are driven by the arms of the revolving reel and carried between the 
two rollers aud crushed. Horizontal strips running along the rollers serve to keep 
the rollers and platform clear of the crushed grasshoppers. The whole machine is 
supported on two main wheels about the middle and two smaller ones in front. Ex- 
tending back is a frame or cross-bar, to which one or two horses may be hitched to 
push the machine forward, or it may be operated by hand. The front of the plat- 
form runs close to the ground, and by bearing down at the rear by the driver it can 
easily be lifted over any obstruction that may be in the way. The machine can be 
raised or lowered in front to suit the crop over which it is run. 
This invention will destroy the grasshoppers without the necessity and expense of 
using oil or tar. The patent, we understand, also covers the combinations of a 
receptacle immediately under the rollers, into which the grasshoppers are carried, and 
in which, if need be, water and oil may be kept, and also a long narrow hopper 
(just over the rollers), into which coal-tar may be put aud allowed to run through 
onto the platform, thus makiug it a self-tarring machine. Either of these combined 
methods of destroying the ; hoppers may be used as the farmer may choose. The 
