Modern Magic: A Practical Treatise on the Art of Conjuring
Professor Hoffmann56Fourth Method. (With one hand only.)--Take the pack, face downwards, in the left hand, as if about to deal. Place the card to be changed on the top, and the card for which it is to be changed next below it. With the left thumb push forward the top card to the extent of half its width, letting it rest on the tips of the fingers. This will leave one-half of the second card exposed. By a reverse movement of the thumb, draw back this second card till its outer edge is just clear of the inner edge of the top card. Now press the second card downwards with the thumb so as to bring its opposite edge just above the level of the top card; then push it back into its place, but this time above instead of below the top card. Fifth Method. (To change a given card without the aid of the pack.)--A card having been chosen and returned to the pack, make the pass to bring it to the top, and palm it. Give the pack to be shuffled, and when it is returned pick out hap-hazard any card you please, and holding it up between the first finger and thumb of the right hand (in which is the palmed card), announce boldly that that was the card chosen. You will, of course, be contradicted, whereupon you pretend to be disconcerted, and ask if the person is quite certain that that is not the card he drew, and so on. Meanwhile, you take the card, face downwards, between the first finger and thumb of the left hand, whence you immediately take it again in the right hand (see Fig. 19), taking it so as to bring the palmed card immediately over it, when the two will at a little distance appear to be only one card. You then say, “Well, if you seriously assure me that it is not the right card, I must endeavour to change it to the right one. May I ask what your card was?” When you are told, you continue, “It is a very simple process. I have merely to lay the card upon my hand, so, or if you prefer it, I will change it in your own hands. Oblige me by holding the card face downwards.

