Secrets of wise men, chemists and great physicians (1889)
David, Wm. K. (William King) · Chicago : Wm.K. David · leaf 106
flaps of the portfolio. It was only necessary,then, to open the latter in one direction or the other to render it impos-sible to open more than one of the two sets of flaps. This device is one that permits of a large number of tricks beingperformed, since every object put under one of the sets of… … FIG. 4.—MAGIC PORTFOLIO, ENVELOPES, AND BOXES. several sheets of paper of different colors folded over, one upon theother. A card inclosed within the middle envelope, over which havebeen folded all the others, is found to have disappeared when the flapsare opened again. The secret of the trick is…
Recipes · Tricks · Medicine -- Formulae, receipts, prescriptions
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