Hummel, J. J. (John James), d. 1902 · London : Cassell · leaf 32
terial, are its snowywhiteness, silky lustre, and great tenacity. This last featureis no doubt owing to its fibrous texture as well as to thethickness of the cell walls. Its straight, even, prismatic,and transparent character accounts largely for the lustre. Linen is hygrometric to about the same… … Chap. IL] PHYSICAL STRUCTURE OF FLAX. 19 20. Chemical Composition.—Treated with sulphuricacid and iodine solution, the thick cell wall is colouredblue, while the secondary deposits, immediately enclosingthe central canal, acquire a yellow colour. The linenfibre consists therefore essentially of…
Dyes and dyeing
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