. Mathematical recreations and essays. Mathematical recreations; Geometry; Bees; Cryptography; Ciphers; String figures; Magic squares. 322 STRING FIGURES [CH. XV flexible string, such as macrami thread, about six-and-a-half feet long, knotting the ends so as to make it into a closed loop, and then weaving or twisting this loop on the fingers in some de- fined way. Normally at the end of each movement the hands should be drawn apart so as to tighten the string, and be held upright with the fingers pointing upwards and the palms approximately facing one another. Here are some examples chosen pur
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. Mathematical recreations and essays. Mathematical recreations; Geometry; Bees; Cryptography; Ciphers; String figures; Magic squares. 322 STRING FIGURES [CH. XV flexible string, such as macrami thread, about six-and-a-half feet long, knotting the ends so as to make it into a closed loop, and then weaving or twisting this loop on the fingers in some de- fined way. Normally at the end of each movement the hands should be drawn apart so as to tighten the string, and be held upright with the fingers pointing upwards and the palms approximately facing one another. Here are some examples chosen purposely from widely separated countries. The figures are drawn as seen by the operator. A Mosquito or Fly. This design, made in slightly different ways in different countries, represents the insect with its body midway between the hands, and its wings spread out. The following construction is taken from South American Indians whose habitat is on the banks of the Amazon. This figure is there made by the following five successive movements: (1) Put the thumbs, held upright, into the loop of string, and separate the hands. (2) Move the left hand to a horizontal position; then turn it counter-clockwise under the strings and up towards you into its normal position, thus giving two dbrsal strings and no palmar string. (3) Pass the right hand between you and the left hand, then put the right little-. Figure i. The Fly. finger from above under the dorsal strings, pick them up, and return the finger to its former position. [Unless the contrary. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Ball, W. W. Rouse (Walter William Rouse), 1850-1925. London, Macmillan