All the work on this engine, save turning the pistons, which was
done in a machine shop for a small sum, and making the flywheel,
this being taken from an old dismantled model, was accomplished
with a hacksaw, bench drill, carborundum wheel, files, taps and
dies. The base, Q, is made of a heavy piece of brass.
The action is smooth and the speed high. Steam is supplied by a
sheet brass boiler of about 3 pt. capacity, heated with a Bunsen
burner.
--Contributed by Harry F. Lowe, Washington, D. C.
** Magic Spirit Hand [2]
The magic hand made of wax is given to the audience for
examination, also a board which is suspended by four pieces of
common picture-frame wire. The hand is placed upon the board and
answers, by rapping, any question asked by members of the
audience. The hand and the board may be examined at any time and
yet the rapping can be continued, though surrounded by the
audience.
The Magic Wand, London, gives the secret of this spirit hand as
follows: The hand is prepared by concealing in the wrist a few
soft iron plates, the wrist being afterwards bound with black
velvet as shown in Fig.
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