Shelter and clothing; a textbook of the household arts (1920)
Kinne, Helen, 1861-1917. [from old catalog], Cooley, Anna M. (Anna Maria), b. 1874, joint author · New York, The Macmillan company · leaf 210
188 COMPARISON OF WOOL, COTTON, SILK, AND FLAX 189 nitrogenous substance belongingproteins (see Fig. 86). Cotton when seen mi-croscopically differs ma-terially from wool. In-stead of the serratedkinky fiber one sees rib-bon-like tubular fiberswith more or less twist.The number of twistsvaries. Some… … Fig.
Home Economics · Textile industry and fabrics
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