The chain should be strong enough to hold any animal for which the trap is designed.
It goes without saying that a good swivel is indispensable, as well as a reliable ring and wedge for fastening, and the "S" Hook sometimes furnished will be found very convenient as a means for attaching the trap to a drag.
CHAPTER III.
A FEW FAILURES.
We present herewith a few photos taken from a collection of experimental traps and will endeavor to point out wherein these failed to prove themselves of practical value.
"BOB TAIL" TRAP.
This trap was sometimes called the "Bob Tail" on account of its lack of a dog, and this feature was thought to be a valuable one as there was nothing to throw the animal's foot out, but it was found to be deficient in that it was not sensitive enough and it lacked any adjustability in its setting device.