Ball, W. W. Rouse (Walter William Rouse), 1850-1925 · London, Macmillan · leaf 392
loop. Third.Put the right thumb from below into the right index loop, and, without removing CH. XVl] STRING FIGURES 371 the index, eephrate the thumb from the index. Make movement T on the thumbloops. Repeat tlie movement with the other hand. Fourth. Bring the handsclose together with the index and… … Figure xiv. A Butterfly. on the left index there are two loops, a and /3; on the left thumb there are twoloops, 7 and 5; and the right hand is free. Fifth. Put the tips of the rightindex and thumb against the left thumb knuckle. Take up with the right indexfrom the proximal side the loop 5 and take…
Geometry · Cryptography · Ciphers
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