The pan should fit loosely in its bearing for as is well known, rusting increases the size of a piece of iron and as there are four surfaces to rust in a pan bearing, ample room must be left.
[Illustration: LIMB GROWING THRU JAWS. This trap was made about 1875 and no part had given way from the tremendous pressure. Surely a good Newhouse.]
The dog or latch should be thick and narrow rather than wide, as presenting less surface for the animal to step on. It should be curved and pointed in such a way as to hold up the pan but so as to "go off" "easy" or "hard" in proportion to the size of the animal trapped for. This is