Hummel, J. J. (John James), d. 1902 · London : Cassell · leaf 59
less when the silk is white, coloured when it is yellow,and which possibly constitutes the silk-gum to bealluded to subsequently. The whole is enclosed in a thinmembrane. A transverse section (Fig. 14) shows that itoccupies a space equal to 20—25 per cent, of the totalvolume, a proportion which… … Fig. 13.—Tlie Silk Glands of the Silkworm. 46 DIEIKG OF TEXTILE FABRICS. (Chap. IV. form of a douLle fibre, as represented in Fig. 15. Occa-Kionallj the two fibres ma}- be slightly separated at in-tervals, and form then at these points two transparentsolid cylinders. In the beginning of its…
Dyes and dyeing
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