pages: latestmagicbeing00hoff.pdf, 202
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latestmagicbeing00hoff.pdf | 202 | 186 LATEST MAGIC of the pocket-book is associated a special number, known as its "key" number. These are as under: Page 1 Key Number 1 " 2 " " 2 " 3 " " 4 " 4 " " 8 " 5 " " 16 " 6 " " 32 The memorising of these is also a very simple matter, for it will be noted that the key numbers are the first six factors of the familiar geometrical progression, 1, 2, 4, 8, 16, 32. Printed as below: 1, 2. 3, 4, 5, 6 1, 2, 4, 8, 16, 32 the upper figures, in ordinary type, expressing the numbers of the pages, and the lower, in black type, the corresponding key numbers, a very small amount of study will associate them so closely in the mind as to fix them firmly in the memory. Having mastered these two simple lessons, the learner is in a position to use the pocket-book. To ascertain the card chosen, he has only to add together the key numbers of the pages in which he is told that such card appears. The total will be the number at which that card stands in the list given on page 185, and, this being known, it be- comes an easy matter to name, the card itself. We will suppose, for instance, that performer |