]
This bit was arranged as follows (Fig. 3): The two conductors, which
were uncovered for a length of about three centimeters at their
extremity, were placed opposite each other on the two joints of the
snaffle, and about five or six centimeters apart. The mouth-pieces of
the bit had previously been inclosed in a piece of rubber tubing, in
order to insulate the extremities of the conductors and permit the
recomposition of the current to take place through the animal's tongue
or palate.
Each of the bare ends of the conductors was provided, under a circular
brass ligature, with a small damp sponge, which, surrounding the
mouth-piece, secured a perfect contact of each end of the circuit with
the horse's mouth.
[Illustration: FIG. 3.--ARRANGEMENT OF THE BIT]
The horse having been led in, defended himself vigorously as long as
an endeavor was made to remove his shoes by the ordinary method, but
the current had acted scarcely fifteen seconds when it became possible
to lift his feet and strike his shoes with the hammer.
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