Lamb skins, 260 Lancashire finish, 183 Latches, construction, 241 ---- for exhausting tan, 164-8 Laurus tannin, 55 Layers for butts, 176 Leaches, heating, 242 Leather, chemical examination of, 105-8 ----, determining hide substance, 108 ----, estimating ash of, 107 ----, estimating grease in, 105 ----, estimating matters soluble in water, 106 ---- manufacture defined, 1 Lecks for exhausting tan, 164-8 Levantische Gallen, 26-8 Levelling glove kid, 226 Libi-dibi, 25 Lime, examination of, 102 ---- for unhairing, 139-45 ---- -liquors, determining gelatin and coriin in, 104 ---- ----, examination of, 102 Liquors, heating, 242 Literature, 272-4 Llama skins, 261 Lockwood automatic scourer, 197 London finish, 183 Löwenthal's modified process for analysing tannins, 127-31 Loxopterygium wood, 39 Lymph vessels, 8 Machærium wood, 40 Maintenance of tanneries, 231-42 Malphigia tannin, 55 Manatee skins, 256 Mangrove bark, 55 Manquitta bark, 55 Measuring curried leather, 202 Methods of analysis for the tannery, 0-131 Microscope, artificial light for, 12 ----, choice of, 9 ----, illuminating, 12 ----, price of, 10 Microscopic examination of hide, 9-16 Mills for grinding bark, 158-61 ---- ---- ---- sumach leaves, 49 Mimosa bark, 34-8 ---- ---- for sole leather, 158 ---- tannin, 23-5 Mineral tanning, 218-22 Miscellaneous tannins, 53-6 Mise au vent, 194 Moëllon, 211 Molinier's hide-working machine, 187 Morocco leather, 206 Mounting hide-sections, 14 Myrobalans, 38 ----, commerce, 271 ---- for sole leather, 157 Naucite tannin, 55 Nauclea extract, 29-31 Nerve, breaking the, 8 Nitrogen bulb, 103 Noix de galle, 26-8 Nut-galls, 26-8 Oak-bark for sole leather, 157 ---- ---- tannin, 78 ---- -barks, 38 ---- -galls, 26-8 ---- -wood extract for sole leather, 158 Objective, screwing down on cover, 11 Objectives, 8 Oiling in currying, 195 Osmic acid solution, preserving, 15 ---- and chromic acids for hardening and staining hide-sections, 14 Ox skins, 261 Oxalic acid, examining, 102 Oxalis tannin, 55 Oxyphenic acid, 67