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.

The Penetrative Guinea The Phantom facebooktwittergoogle_plusredditpinterestlinkedinmail