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BULLETIN 1350, IJ. S. DEPARTMEKf OF AGEICULTUEE 



the weight of the fore part of the animal, pivot at 4 and 4', respec- 

 tively, and drop the fox to the floor of the house. 



The weight of the fox removed, the counterweights (5 and 5') 

 restore the floor pieces to position, ready for the next fox. The 

 oj)ening (9) of the inner end of the chute is ordinarily left open 



Fig. 15. — Front aud side views of trap and feed house, with trapi installed 



in order that the animals may come and go at will, but it is closed 

 with wire netting when the trap device is to be used. The draw- 

 ings illustrate a runway board (12), similar to the board (2) pre- 

 viously mentioned, which is provided to permit free passage through 

 the trap into the trap-house when desired. 



Fig. 16. — Trap and feed box that can be ins.talled in a house of almost any description 



A light spring (10), pushing outward above the pivot of the 

 trigger, insures the trigger returning to place. When the trap is 

 not in use the trigger should be removed and a cleat nailed across 

 the free ends of the trap floor boards of the chute, thus making 

 the floor solid. The trigger (7) should be made of hardwood, or 



