Shelter and clothing; a textbook of the household arts (1913)
Kinne, Helen, 1861-1917, Cooley, Anna M. (Anna Maria), b. 1874, Woolman, Mary S. fmo, Helen Judy Bond Collection. fmo · New York, The Macmillan Company · leaf 210
8 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 rit>bon-like tubular fiberswith more or less twist.The number of twistsvaries.… … Fig.
Home Economics · Textile fabrics
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