The perfectly black
surface behind the glass now acts like the silver backing for a
mirror, and the object upon which the light is now turned--in this
case the skeleton--is reflected in the glass, appearing to the
audience as if really occupying the stage.
The model, which requires no special skill except that of
carpentry, is constructed as shown in the drawings.
The box containing the stage should be 14 in. by 7 in. by 7-1/2
in., inside dimensions. The box need not be made of particularly
good wood, as the entire interior, with the exception of the
glass, figures and lights, should be colored a dull black. This
can well be done by painting with a solution of lampblack in
turpentine. If everything is not black, especially the joints and
background near A, the illusion will be spoiled.
The glass should be the clearest possible, and must be thoroughly
cleansed. Its edges should nowhere be visible, and it should be
free from scratches and imperfections. The figure A should be a
doll about 4 in. high, dressed in brilliant, light-colored
garments. The skeleton is made of papier mache, and can be bought
at Japanese stores.
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