Cyclopedia of textile work : a general reference library on cotton, woolen and worsted yarn manufacture, weaving, designing, chemistry and dyeing, finishing, knitting, and allied subjects (1911)
American School (Lansing, Ill.) · Chicago : American school of correspondence · leaf 50
and ventilated. The atmosphere iskept at a constant degree of moisture, and the temperature isgradually raised from 18° C. to 25° C. during the period of from tendays to two weeks. At the end of this period the perfect eggshatch, and the worms are transferred to a large, airy room, and fedat… … Fiff. 11. 40 TEXTILE CHEMISTRY AND DYEING. 33 able size, weighing as much as five grams, are transferred toanother room containing loose twigs, and upon these the silk-worms immediately attach themselves and begin to spin. (SeeFig. 11.) 73. The Cocoon. When the spinning operation begins,…
Textile fabrics · Textile industry
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