Silk; its origin, culture, and manufacture; . CoRTicELLi Cocoons from which the Moths haveEmerged. The gummy liquid which combines the two strands hard-ens immediately on exposure to the air. The worm works incessantly, forcing the silk out bythe contraction of its body. The thin, gauze-like networkwhich soon surrounds it gradually thickens, until, twenty-four hours after beginning to spin, the worm is nearlyhidden from view. However, the cocoon is not completedfor about three days. The cocoon is tough, strong, and compact, composed ofa firm, continuous thread, which is, however, not wound in
Silk; its origin, culture, and manufacture; . CoRTicELLi Cocoons from which the Moths haveEmerged. The gummy liquid which combines the two strands hard-ens immediately on exposure to the air. The worm works incessantly, forcing the silk out bythe contraction of its body. The thin, gauze-like networkwhich soon surrounds it gradually thickens, until, twenty-four hours after beginning to spin, the worm is nearlyhidden from view. However, the cocoon is not completedfor about three days. The cocoon is tough, strong, and compact, composed ofa firm, continuous thread, which is, however, not wound in concen-tric circles,but irregu-larly i nshort figureeight loops,first in oneplace andthen in an-other. Themotion o fthe wormsMoths Emerging from Corticelli Cocoons. head when 21.
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Keywords: ., bookcentury1900, bookdecade1910, bookidsilkitsor, booksubjectsilk
