The drying twist of a large number of commercial fibers has been determined. In addition, fibers from related plants which are not at present utilized on a large scale were studied.
It was found that fibers from four of the twenty families represented by commercially im portant fibers have clockwise drying twists. These were the Linaceae, Urticaceae, Apocynaceae, and Asclepiadaceae. These observations should be useful in fiber identification and in yielding a clue to cell-wall structure.
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