1); also provide them with a handle.
Saw out a rectangular block about one and one-half times as long
as the brass strips and fasten to it at each end two forked pieces
of copper or brass, as in Fig. 2. Fasten on the switch lever, as
at A and B, Fig. 2, so that it can rotate about these points.
Connect the wires as shown in Fig. 3. To reverse, throw
[Illustration: Simple Current-Reversing Switch]
the lever from one end of the block to the other.
--Contributed by R. L. Thomas, San Marcos, Tex.
** Novel Mousetrap [112]
A piece of an old bicycle tire and a glass fruit jar are the only
materials required for making this trap. Push one end of the tire
into the hole, making sure that there is a space left at the end
so that the mice can get in. Then
[Illustration: A Baitless Trap]
bend the other end down into a fruit jar or other glass jar. Bait
may be placed in the jar if desired, although this is not
necessary.
--Contributed by Geo. Go McVicker, North Bend, Neb.
** Polishing Nickel [112]
A brilliant polish may be given to tarnished nickel by immersing
in alcohol and 2 per cent of sulphuric acid from 5 to 15 seconds.
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