366 REPORT UNITED STATES ENTOMOLOGICAL COMMISSION. 



the insects passing over the brush are drawn through the rclls C C and killed, falling 

 upon the ground, or if it is desired to collect the insects for any purpose, a bag may be 

 attached to the frame A, by hooks or otherwise, below the rolls C C. Upon the frame 

 A are screwed, by means of springs or elastic connections a, two scrapers, A^, of metal 

 or wood, which, bearing upon the surfaces of the rolls C C, serve to keep them clean 

 and prevent the insects from being carried around them and clogging the machine. 

 To the top of the frame A is secured a light frame or top, E, of wood or metal, covered 

 with the same or with canvas, and having two side-wings, E' E', also of canvas. The 

 side-wings. E' are also secured to the frame of the apron 13'^, forming with that and with 

 the top E a hopper of entrance to the rolls C C, of large area, to catch the insects and 

 prevent their flying over the machine and escaping. The wings E' are also attached 

 to the shafts D D, or to the harnesses of the horses, to assist in spreading and enlarg- 

 ing the area of the hopper. The frame A is carried upon two wheels, A^ A^, which have 

 projections upon their periphery to give them the necessary driving-power required by 

 the rolls B and C. To each side of the frame A are secured brackets a', which extend 

 back and are attached to the cuter end of axles of A^ A^. Upon the brackets a' are 

 pivoted shafts D, by means of which horses can be harnessed to the vehicle for the pur- 

 pose of drawing it, the pivots d giving the horses the necessary freedom and independ- 

 ence of motion, and also allowing the side-wings E' to be drawn out or spread out by 

 the action of the horses. 



ADother is that invented by Mr. Michael H. Simpson, of Boston, 

 Mass. (Patent '^o, 198,420, dated December 18, 1877. Fig. 69 repre- 

 sents a perspective view of the machine ; Fig. 70 a sectional view of the 

 same as shown in the preceding j and Fig. 71 a sectional view of the 

 same arranged for the removal of the insects. 



Fig. 69.— The Simpson Locust-crusher : Perspective view. 

 The invention consists, as a whole, in a receptacle for insects, composed of a plat- 

 form adapted to be 

 drawn or propelled 

 along the surface of 

 the ground, and a 

 fl :xible hood or cover 

 located on said plat- 

 form. The receptacle 

 Tig. 70.— The Simpson Locust-crusher: Sectional vie-w. thus formed is adapted 



to be opened at its front, and held open by the draught which moves the apparatus, and 

 to be automatically closed at its front when the apparatus stops ; and the receptacle 

 is adapted to be opened at its rear for the removal of the insects after they have been 

 killed by being crushed against the platform. 



In the drawings, A represents the grasshopper catcher or receptacle, which is com- 

 posed of a rigid platform, ^ 

 and a flexile hood or cover, 

 c, located thereon. The 

 platform & is mounted on 



■^\^\<.\''v^\l''v's^'5^^ — -.* trucks d d d,\> its rear side, 



A>'> i>^> >>\\^ N> y"jr'^=^ > TP>„„^ — _^s=»p— — g^jj^ jjas draught-ropes e e at- 

 FiG. 71.— The Simpson Locust-crusher: Sectional view, -when ready Cached to its forward side, 

 to remove the insects. g^^^^ ^^^^^ ^^:^^„ adapted for 



attachment to a horse. The platform is, preferably, from five to seven feet long, and 



