drawing of the parts as they appear when the trap is set. (_a_),
An upright post, is supplied at the upper end with a notch, having
its flat face on the lower side. This post should be driven into
the ground in the left hand back corner of the pen, and should
be three feet or more in height. Another post (_b_) of similar
dimensions, is provided with a notch at its upper end, the notch
being reversed, _i. e._, having its flat side _uppermost_. This
post should be set in the ground, _outside_ of the pen, on the
right hand side and on a line with the first. A third post (_c_),
is provided with a crotch on its upper end. This should be planted
outside of the pen on the right hand side, and on a line with the
front. The treadle piece consists of a forked branch, about three feet
[Page 19]
in length, supplied with a square board secured across its ends.
At the junction of the forks, an augur hole is bored, into which a
stiff stick about three feet in length is inserted. This is shown
at (_h_). Two poles, (_d_) and (_e_), should next be procured, each
about four feet in length. These complete the number of pieces,
and the trap may then be set. Pass the pole (_d_) between the stakes
of the pen, laying one end in the notch in the post (_a_), and
holding the other beneath the notch in the upright (_b_). The second
pole (_e_) should then be adjusted, one end being placed in the
crotch post (_c_), and the other caught beneath the projecting
end of the pole (_d_), as is fully illustrated in the engraving.
The dead-log should then be rested on the front extremity of the
pole last adjusted, thus effecting an equilibrium.

[Illustration]

The treadle-piece should now be placed in position over a short