Matthews, Mary Lockwood, b. 1882 · Boston, Little, Brown, and company · leaf 161
reads in a fabricand examining thefibers, one may tellwhether the cloth isall-wool, whether it is all-linen or all-silk, and whetherpoor fibers have been used as substitute material.Under the microscope the fibers look as follows: Cotton — ribbon-like, tubular fiberswhich are more orless twisted.… … SEWING AND TEXTILES 141 as somewhat flattened and composed of two fila-ments. Burning tests. By burning threads pulled frommaterials one may often judge somewhat of theirquality. Light the end of the thread and observethe odor given off and the manner in which it burns. Cotton and linen threads…
Sewing · Textile industry and fabrics
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