337 



Ground Vermin. 



edge by means of a screw. For the admission of the 

 treadle (Fig. 40) a strip is cut out at B, pin. by 6in. long, 



Fig. 39. Floor of " High Elms " Trap. 



and Jin. wide. The two pieces of wood are nailed 

 together with two strips, each 2in. wide and Jin. thick. 



Fig. 40. Treadle of " High Elms " Trap. 



A is the spot where the stanchion (Fig. 42) is screwed on. 

 Fig. 41 is the cover or lid, which may consist of one 



C D 



Fig. 41. Cover of " High Elms " Trap. 



piece, or be made of two, similarly to Fig. 39. It 

 requires, however, to be 2in. shorter, but is equally broad. 



