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 211
ied. affects the twisted wall, making it(see Fig. 87). so.—Wool fibers magnified. because they do not takethe spinning. As manyas 300 twists have beencounted on a single fila-ment. To the naked eyecotton fibers appear fluffyand dull white. Whenwoven, the threads areregular and uniform.Chemically… … Silk fibers from the cocoon examined microscopically ap-pear without any charac-teristic markings. Theyliave the appearance of asomewhat flattened com-bination of two filamentsof noticeable length andcontinuity. If mercer-ized cotton is used withsilk, the microscopy re-veals it by an…
Home Economics · Textile fabrics
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