Hair cuticle, 4 ----, growth, 2 Handler liquors, table of determinations, 111 Handlers, 169, 173 Handling hides, 169 Har, 38 Hardening hide for cutting, 14 Hardness of water, 84-6 ---- ---- ----, estimating, 97 Harra, 38 Hartnack's objectives and eye-pieces, 10 Head required to pass air in pipes, 253 Heat, decomposition of tannins by, 65-8 Heating effect of pipes, 250 ---- leaches, 242 ---- liquors, 242 Hemlock, 31 ---- extract for sole leather, 158 Henle's layer, 5 Hide albumen, 20 ----, anatomical structure, 2-16 ----, chemical composition, 17-22 ----, examining cellular structure, 12 ----, hardening, for cutting, 14 ----, holding, for cutting, 13 ----, influence of water in plumping, 85 ----, microscopic examination, 9-16 ----, section, 2 ----, sections, cutting, 12-15 ---- ----, mounting, 14 ---- ----, rendering transparent, 13 ---- ----, simultaneous hardening and staining, 14 ---- ----, staining, 14 ---- substance in leather, determining, 108 Hides, beaming, 151 ----, dividing, 155 ----, fleshing, 152-5 ---- for sole leather, preparing, 132-8 ----, handling, 169 ----, imports, 266-70 ----, liming, 139-45 ----, preparing for tanning, 133-8 ----, rounding, 155 ----, soaking, 133-6 ----, softening, 138 ----, stocking, 136 ----, sweating, 145-7 ----, unhairing, 139-56 ----, ---- by sulphides, 147-50 High-power objectives, 11 Hiusache tannin, 53 Holding hide for cutting, 13 Holmes' tool carriage, 196 Horny layer of hide, 2 ---- tissues, nature of, 21 Horse skins, 260 Hot air pipes, 252 ---- water pipes, 252 Howard scrubber, 176 Huxley's layer, 5 Hyaline, 6 Hydrochloric acid, examining, 101 Hydrometer, 169 Hygrometer table, 249 Hymenæa pods, 23 Illuminating apparatus, 10 ---- microscope, 12 Immersion lenses, 9 Indicators for analysis, 91 Infusions for Löwenthal's analytical method, 130 Inga tannin, 55 Instruments for analysis, 91-5 Iodina wood, 40 Iron in tanyards, 241 Jackson scouring machine, 196 Japanese galls, 28 Japanned leather, 203-5 ---- ----, commerce, 265 Jiggers, 207 Juchtenleder, 208 Kamai bark, 56 Kangaroo skins, 260 Kát, 23-5 Keratin, 21 Kid skins, 258-60 Kifushi galls, 28 Kino, 32-4 Kinoin, 81 Kiri-hinau tannin, 54 Kiri-toa-toa bark, 55 Knoppern galls, 27 Kut, 23-5