162 The Rocky Mountain Locust. 



dumping of the insects, will do admirable work. The 

 insects gravitate toward the wire screen, and when the 

 secondary bag is full they may be emptied into a pit dug 

 for the purpose. These bagging-machines will prove most 

 serviceable when grain is too high for the kerosene pans, 

 presently to be described, and they will be rendered more 

 effectual by having runners, at distances of about every 

 two feet extending a foot or so in front of the mouth, so 

 as to more thoroughly disturb the insects and prevent them 

 from getting underneath; also by being drawn by wings of 

 vertical teeth so as to increase the scope with as little 

 resistance to the wind as possible. 



Hand nets, such as are used by entomologists, and which 

 [Fig. 34.] are easily made as 



shown in accompany- 

 ing figure, will do good 

 service in gardens. 



A curious suction- 

 fanning machine has 

 been invented by Mr. 

 J. Co King, of Boulder, 

 b e rt A f?an2 ET:_a ' complete: b ' hollow handle: °' Col., and may be men- 

 tioned in this connection. A strong draft sucks the insects 

 up through an elongate mouth with lips that run near the 

 ground, and draws them up through two funnels and knocks 

 them to pieces. I have seen the working of such a machine 

 in Mr. T. C* Henry's possession at Abilene, Kan. It is an 

 admirable invention, and may be improved so as to be of 

 great service ; but on account of its expense will scarcely 

 compete with the more simple methods. 



5. Use of destructive agents. — Kerosene is the most 

 effective. It may be used in any of its cruder forms. In 

 Colorado they use it to good advantage on the water in 

 their irrigating-ditches, and it may be used anywhere in 



