THE SYMPATHETIC LAMP.
This lamp is put upon a table; the conjurer gives a signal to the assistant to blow in a pipe, without directing the wind to the place where it is laid, and nevertheless it extinguishes it immediately, as if some person had blown it out.
Explanation. The stand which holds the lamp contains a pair of bellows in its base, by which the wind is conveyed straight to the flame through a little pipe. An assistant under the floor (or behind the curtain), by moving machinery concealed under the table, works the bellows below to extinguish the lamp at the moment desired.