wide and
about 1-in. thick. This board is fastened to the piece on the wall
with two hinges as shown in Fig. 1. A small cleat is nailed to the
outer and under edge of the board and in the middle as shown. This
is used to place a support under the outer edge of the shelf. The
support, A, Fig. 2, should be long enough to extend diagonally to
the floor or top of the baseboard from the inner edge of the cleat
when the shelf is up in its proper place. --L. L.
** Home-Made Electric Battery Massage [144]
A simple and cheap electric massage device can be made by using
three or
[Illustration: Electric Massage]
four cells of dry battery connected to two ordinary silver
tablespoons, as shown in the sketch. The handles of the spoons
should be insulated or the operator can wear either kid or rubber
gloves.
** How to Make Tint Lantern Slides [144]
Purchase some lantern slide plates and fix them in hypo without
exposing, in the usual manner, same as you would an exposed plate,
says the Moving Picture World. This leaves a thin, perfectly
transparent emulsion film on the glass, which will readily take
color.
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