Arrange as in this figure.
Fig. 161.
TO NAME SEVERAL CHOSEN CARDS OUT OF A PACK DIVIDED INTO TWO HEAPS.
A complete pack is divided into two such lots that all the aces, nines, sevens, fives, and threes, are in one, and all the kings, queens, knaves, tens, eights, sixes, fours, and twos, are in the other.
Let several of the company draw cards out of either of the heaps, change the heaps unperceived, and let the persons place the odd cards, as ace, nine, &c., into the heap of even cards, and vice versâ. On running over the cards, you easily discover the drawn cards, the even cards being in the heap of odd cards, and the odd cards in the heap of even cards.
TO MAKE TWO PERSONS DRAW THE SAME CARD OUT OF TWO PACKS.
You arrange with your confederate that he shall select a certain card, say the tenth from the top, in a prepared pack. From a second pack you force a similar card on an innocent member of the company. On the two comparing notes, the truth of your assertion will be made manifest.
TO PRODUCE A CARD WITHOUT SEEING THE PACK.
Take a pack of cards with the corners at one end slightly cut off. Place them all one way, and ask a person to draw a card; when he has done so, while he is looking at it, reverse the pack, so that when he returns the card to the pack the corner of it will project from the rest; let him shuffle them; he will never observe the projecting card. Hold them behind your back. You can feel the projecting card; draw it out, and show it.