A powerful and wealthy king, having lost his wife, was so inconsolable, that he shut himself up for eight entire days, in a little cabinet, where he spent his time in knocking his head against the wall, until the courtiers were afraid he woul... Read more of The Blue Bird at Children Stories.caInformational Site Network Informational
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The Perspective Mirror








Provide a box, A B C D, Fig. 24, of about two feet long, 15 inches
wide, and 12 inches high. At the end A C, place the concave mirror,
the focus of whose parallel rays is 18 inches from the reflecting
surface. At I L place a pasteboard, blacked, in which a hole is cut,
sufficiently large to see on the mirror H the object placed at B E F
D. Cover the top of the box, from A to I, close, that the mirror H may
be entirely darkened. The other part, I B, must be covered with glass,
under which is placed a gauze, or oiled paper, to prevent the inside
from being seen. Make an aperture at G, near the top of the side E B,
beneath which, on the inside, place in succession, paintings of
vistas, landscapes, figures, &c., so that they may be in front of the
mirror H. Let the box be placed that the objects may be strongly
illuminated by the sun, or by wax-lights placed under the enclosed
part of the box A I. By this simple construction, the objects placed
at G D will be thrown into their natural perspective, and if the
subjects be properly chosen and well executed, the appearance will be
both wonderful and pleasing.





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