POISONING AND TRAPPING = 307 
traps, simple wire traps of the guillotine order, 
in which mice are instantly killed, are the 
most effective. 
Traps without bait may be set across the 
runs of the mice, where the animals spring 
them by coming in contact with the trigger, 
or they may be baited with oat or corn meal. 
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METHOD OF CONSTRUCTING A TIP-UP TRAP WITH A BOX. 
For trapping pine mice an opening should be 
made in the underground tunnel large enough 
to receive the trap, which should be set across 
the bottom of the runway. The traps may be 
baited or not, but the opening should be cov- 
ered. 
Traps for gophers. Trapping is a success- 
ful method when followed intelligently and 
persistently. It is especially adapted to small 
