TO CHANGE A CARD LOCKED UP IN A BOX.

You ask a person to give yon any card he pleases out of the pack, and you let him put it into a box which is locked up before the company. You then take a few cards, and desire another to draw one and remember it, which he does, and the cards are laid aside. You now unlock the box, and the card which the second person drew is in the box, instead of the one which is locked up.

Explanation.—A box must be made on purpose with a double bottom ; on the false one is laid the card which the first person chose.

In locking the box by a secret spring, the false bottom is raised with the card, and firmly united to that part where the hinges are. On the real bottom lies another card, which had been previously and secretly deposited there.

In making a person draw a card a duplicate of this is forced upon him ; for if he attempts to draw another, under some pretence you shuffle the cards again, till at last he takes the very card you intend for him. This card yon know by feeling it, it being purposely longer than any of the rest, and is in fact a conjuror's secret card. You must never let one of those particular or brief cards remain in a pack when you give it to be examined.

N.B. This trick may be varied. A Scotch or pound note can be changed into an English or five-pound note, &c, but it ought to be something which will lie in a narrow compass, in order that the false bottom may fall closely into its place.

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