Page:Magic (Ellis Stanyon).djvu/219

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Stage Tricks
217

toward the other end. Mount this mirror or plate so that it can, at pleasure, be placed diagonally
Fig. 63.—Graduated Mirror
across the stage or platform. As it advances the glass obscures the view of the
Fig. 64.—Diagram for Blue Room
actor or object in front of which it passes, and substitutes the reflection of an object in front of the glass, but suitably concealed from the direct view of the audience.

"When the two objects or sets of objects thus successively presented to the view are properly placed and sufficiently alike, the audience will be unaware that any change has been made. In some cases, in