Modern Magic: A Practical Treatise on the Art of Conjuring

The above may be employed as a means of “forcing,” where it is essential to force a given card, and you are not sufficiently proficient to feel certain of effecting that object by the regular method. Thus, suppose that the card which you desire to force is the seven of diamonds, you place that card at the bottom of the pack, and proceed as above directed. When the audience desire you to stop, you draw off the upper packet, and with it the seven of diamonds, which will thereby become the bottom card of that packet. You request them to note the card, and at once hand the pack to be shuffled. This is a very simple and easy mode of forcing, but it is very generally known, and it would not, therefore, be safe to use it before a large or very acute audience. Second Method.--Deal the cards into three packs, face upwards, and request a spectator to note a card, and remember in which heap it is. When you have dealt twenty-one cards, throw the rest aside, these not being employed in the trick. Ask in which heap the chosen card is, and place that heap between the other two, and deal again as before. Again ask the question, place the heap indicated in the middle, and deal again a third time. Note particularly the fourth or middle card of each heap, as one or other of those three cards will be the card thought of. Ask, for the last time, in which heap the chosen card now is, when you may be certain that it was the card which you noted as being the middle card of that heap.