None
Silk, chemical reactions of, 91 coloring -matter in, 91 conditioning of, 80 density of, 82 determination of in fabrics, 256 electrification of, 81 hygroscopic properties of, 80 lustre of, 8 1 physical factors of, 82 physical properties of, 74 qualitative distinction of from other fibres, 213 scroop of, 82 strength of, 82 thickness of in cocoon, 72 and cotton fabrics, analysis of, 252 cocoon, dimensions of, 68 culture, history of, 69 in America, 69 Silk fibre, chemical composition of, 86 thickness of, 221 Silk-glue, 85 discharging of, 85 Silk -grass, 206 Silk-reeling, 83 Silk -shoddy, 72 Silk- wool, 41 Silkworm, 68 its method of spinning, 71 Silkworms, annual, 69 method of cultivation of, 70 poly vol tine, 69 Silver nitrate solution for fibre-testing, 211 Sisal hemp, 192, 203 Slag wool, 4 Smooth-haired sheep, 7 Smooth Peruvian cotton, 120, 125, 126 Smyrna cotton, 119, 125, 127 Sodium nitroprusside solution for fibre- testing, 211 plumbite solution for fibre-testing, 211 Spanish moss, 105 sheep, 6 Spartium junccum, TOO Specific gravity of fibres, 262 Spinning fibres, 102 Sponia ivightii, 99 Spun glass, 3 silk, 83 "Staff," 105 Stannic chloride solution for fibre-test- ing, 209 Stearerin, 33 Stegmata in Manila hemp, 202 Stcrculia villosa, 99 Stiffening fibres, 105 St. Louis cotton, 127 Straw plaits, 104 Strophunthus, 99, 122 Structural fibres, 101 Strussa silk, 72 Stuffing fibres, 104 Sugar-cane hairs, 226 Suint, 33 Sulphur in wool, amount of, 30 effect of in dyeing, 29 manner of combination, 30 manner of removing, 30 to show presence of, 29 Sulphuric acid, action of on wool, 37 Suun hemp, 99, 100, 109, 192, 197, 234, 246 analysis of, 198 Surat cotton, 119, 128 Surface fibres, 101 Surinam cotton, 125 Swedish hemp, 192 T. Table of reactions of animal and vege- table fibres, 214 Tahiti cotton, 119, 125, 126 Tame sheep of Cabul, 7 Tampico hemp, 192 Tannic acid, action of on wool, 39 Tarmate silk, 72 Tartary sheep, 7 Tennessee cotton, 125, 127 Tensile strength of wool fibre, 20 Tetranitro-cellulose, 150 Texas cotton, 125, 126 Textile fibres, quantitative analysis of, 247 papers, 105 Thermochemical reactions of wool, 38 Thespesia lampas, 99, 109 Thibet goat, 6 wool, 51 Tie material, 103 Tilia euro pa, 100 Tillandsia fibre, 99, 109 Tinnevelly cotton, 119, 125, 128* Tops, 24 Tram silk, 84 Tree-basts, 103 Trinitro-cellulose, 150, 171 True silk, action of polarized light on, 222 distinction of from wild silks, 217 Tungstic acid, action of on cotton, 151 Turkish cotton, 128 Tussah silk, 74 action of polarized light on, 223 Analysis of, 94 analysis of ash of, 94 chemical properties of, 94 difference of from true silk, 95 microscopy of, 78 Type of shi-rp, influences determining, 7 Typha angusti/olia, 225 Tyrosin, production of from fibroin, 88 INDEX. 287 U. Upland cotton, 114, 116, 120, 125, 127 Urena sinuata, 99, 109, 238, 245 Urtica dioica, 100, 192 nivea, 100 V. Vanduara silk, 173 Vascular fibres, 97 Vasculose, 147 Vegetable fibres, i analytical review of, 241 classification of, 100 color of, 1 08 Cross and Bevan's method for determining, 212 hygroscopic moisture in, 109 lustre of, 1 08 micro-analytical tables for, 223 table for determination of, 232 down, 121, 226, 243 microscopy of, 121 parchment, 148 silk, 99, 121, 226, 243 Vicogne, 59 yarn, 61 Vicuna, 59 Vicuna wool, 61 Viscose, 153 silk, 176 Vulcanized fibre, 148 W. Wadding silk, 72 Waste silk, 72 Water hemp, 192 Watt silk, >c Waves in wool fibre, number of per inch, 20 Waviness of wool fibre, 19 manner of removing, 20 Weighted silk, analysis of, 265 Weighting, determination of in silk, 258, 262 materials in silk, 259 West Indian cotton, 121, 125 varieties of, 127 sheep of Jamaica, 7 Western Madras cotton, 119 Westerns cotton, 128 White Egyptian cotton, 120, 125, 126 Wild hemp, 192 silks, 73 microscopy of, 77, 90 Willesden canvas, 147 Wodomalam cotton, 125 Wood-pulp fibre, 105 Woody fibre, 101 Wool, action of acid salts on, 42 alkalies on, 39 alkaline carbonates on, 39 artificial heat on, 44 barium hydroxide on, 41 bromin on, 41 chlorin on, 41 coloring-matters on, 42 milk-of-lime on, 41 neutral salts on, 41 oxidizing agents on, 41 volatile alkalies on, 41 analysis of, 28 chemical constitution of, 28 hygroscopic nature of, 43 manner of drying, 44 physical elements of, 10 physiology of, 9 proper drying of, 45 special meaning of term, 6 water of hydration in, 44 and cotton fabrics, analysis of, 247 and silk fabrics, analysis of, 251 Wool-bearing animals, 6 Wool, cotton, and silk fabrics, analysis of, 252 Wool-fat, 10 Wool fibre, action of concentrated mineral acids on, 39 dilute acids on, 37 heat on, 31 hot water on, 31 chemical composition of, 31 chemical elements in, 28 chemical reactions of, 35 classification of, 27 conditions influencing structure of, 53 decomposition products of, 32 diameter of, 24 distillation of with caustic potash, 32 dry distillation of, 32 length of, 24 microscopy of, 13 mineral matter in, 34 morphology of, n qualities of as a textile fibre, 5 the typical, 14 Wool-grading, 8 Wool-hair of sheep, 8 Wool-mixes, 54 Wool-oil, ii Wool-sorter's disease, 59 Wool-sorting, 8 divisions of fleece in, 8 Wool substitute, 50 Woolen yarns, 25 Worsted yarns, 24 288 INDEX. X. Xanthoproteic acid, 37 Y. Yama-mai silk, action of polarized light on, 223 ] Yenu sheep, 7 Yucca fibre, 100, 240, 241 Z. Zeylan «heep, 7 Zinc chloride solution for fibre-testing, 209 Zoster a marina, 97 I, AST Tr-^-v,°oo - - Y THE UNIVERSITY OF CALIFORNIA LIBRARY. 