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THE MYSTIC TEST BOOK.
observes the wonderful co-ordinating numbers of that triangle." A noted Chicago writer said: "Laying aside all mysteries, all assumption and all ordinary magic manifestations connected with that well known combination called 'playing cards,' the co-ordinations found in Prof. Richmond's demonstration of the 'Mystic Triangle,' alone is
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THE MYSTIC TRIANGLE.
sufficient to convince any intelligent person of the magic—and one might almost say divine—qualities of the emblems therein." In setting forth the work, I left one very important co-ordination for my readers to discover for themselves. Some ten or twelve of them did make the discovery, and wrote and spoke to me of the same.