re : starch, cellulose, occasionallysugar, a bitter principle extracted by alcohol, a pigmentary substance,and mineral constituents. Analyses have shown the presence ofover 50 per cent, of readily soluble gum. The more extensive thechemical metamorphosis of the tissue affected in the production… … FlO. lti.—Longitudinal sectionthrough foliaceous tragacanth.S, simple ; s, complex starch gran-ales; ZZ, fragments of cell walls. 54 DRESSINGS FOR TEXTILE FABRICS small quantities of these latter arc present in the best kinds oftragacanth. [nferior soils, on the other hand, often contain so…
Textile finishing
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