INDEX.

Accum, condensation of tar-oils, [69]
Acetic acid, [64]
Acetophenone, [178]
Acid brown, [151]
Acid greens, [106]
Acid magenta, [92]
Acid naphthol yellow, [143]
Acid yellow, [120]
Acridine, [180]
Air, composition of, [24]
Albo-carbon light, [140]
Alizarin black, [172]
Alizarin blue, [174]
Alizarin carmine, [174]
Alizarin green, [174]
Alizarin orange, [174]
Alkali blue, [93]
Amidodimethylaniline, [112]
Ammonia in gas-liquor, [64]
Ammonia, origin in gas-liquor, [65]
Analyses of coal, [23]
Aniline black, [114]
Aniline, history, [75]
Aniline, manufacture, [87]
Aniline yellow, [116]
Annual production of ammonia, [68]
Anthracene, [171]
Anthracene brown, [174]
Anthracene oil, [81], [167]
Anthragallol, [174]
Anthrapurpurin, [174]
Anthraquinone, [173]
Antifebrine, [179]
Antipyrine, [183]
Archil substitute, [151]
Arctic coal, [12]
Arsenic acid process, [90]
Arsenic acid, recovery, [94]
Artificial alizarin, [173]
Artificial purpurin, [173]
Asphalte, [176]
Auramine, [106]
Aurin, [132]
Azines, [109]
Azo-blacks, [159]
Azo-colours, [118]
Azo-dyes for cotton, [158]
Azobenzene, [119]
Azo-dyes from salicylic acid, [135]
Azotoluene, [119]
Baeyer, A. v., indigo, [127]
Baeyer, A. v., phthaleïns, [146]
Basle blue, [111]
Becher, early experiments, [34]
Beet-sugar cultivation, [67]
Benzal chloride, [102]
Benzaldehyde, [103]
Benzene, discovery, [73]
Benzene, final purification, [86]
Benzene in tar-oil, [73]
Benzene theory, [196]
Benzidam, [75]

Benzidine, [136]
Benzoic acid, manufacture, [104]
Benzotrichloride, [102]
Benzyl chloride, [102]
Bernthsen, methylene blue, [113]
Bethell, timber preserving, [70]
Biebrich scarlet, [156]
Biology, dyes used in, [192]
Bismarck brown, [116]
Bitter-almond oil, [103]
Bone oil, [180]
Böttiger, Congo-red, [157]
Bréant, timber pickling, [70]
Briquettes, [178]
Burning naphtha, [86]
Calorific value of carbon, [25]
Calorific value of coal, [20]
Carbolic acid, [129]
Carbolic oil, [23], [80], [129]
Carbon dioxide, [24]
Carboniferous period, [11]
Caro and Kern, phosgene dyes, [106]
Caro and Wanklyn, rosolic acid, [133]
Caro, fluoresceïn and eosin, [147]
Caro, methylene blue, [112]
Chemical washing, [83]
Chlorophyll, [29]
Chrysamines, [136]
Chrysoïdine, [116]
Cinnamic acid, [128]
Clayton, Dean, distils coal, [35]
Clegg, Samuel, gas-engineer, [40]
Coal, amount raised, [59]
Coal-fields of United Kingdom, [60]
Coal-gas, composition, [56]
Coal-gas, manufacture, [42]
Coal-mining, history, [57]
Coal, origin, [9]
Coal, supply, [59]
Cœruleïn, [147]
Coke, composition of, [48]
Coke from gas-retorts, [45]
Coke-oven tar, [49]
Coke, uses of, [47]
Combustion, [23]
Composition of coal, [23]
Congo red, [157]
Conservation of energy, [18]
Constitution of molecules, [95]
Corallin, [132]
Cotton dyes, [137]
Coumarin, [185]
Coupier’s process, [91]
Creosote oil, [163]
Creosoting of timber, [70]
Cresols, [131]
Cresylic acid, [131]
Cretaceous coal, [12]
Crocein scarlets, [156]
Crystal violet, [106]
Cumidine, [155]
Cyanin, [188]
Dale and Caro, induline, [120]
Destructive distillation, [33]
Diazo-compounds, [116]
Diazotype, [191]
Dimethylaniline, [100]
Dinitrobenzene, [120]
Diphenylamine, [101]
Diphenylamine blue, [101]
Distillation, fractional, [78]
Doebner, malachite green, [102]
Dover, coal under, [60]
Dumas and Laurent, anthracene, [171]
Dundonald, Earl, early experiments, [39]
Eikonogen, [189]
Electricity as an illuminating agent, [62]
Eocene coal, [12]
Eosin, [147]

Erythrosin, [188]
Essence of mirbane, [74]
Exalgine, [179]
Fahlberg, saccharin, [186]
Faraday, discovers benzene, [73]
Fast red, [151]
Fertilization by ammonia, [66]
Fire-damp, [32]
First runnings, [80]
Fischer, E. and O., rosaniline, [97]
Fischer, hydrazines, [183]
Fischer, malachite green, [103]
Flavaniline, [180]
Flavopurpurin, [174]
Fluoresceïn, [147]
Foot-pound, [19]
Fractional distillation, [78]
Fritzsche, aniline, [75]
Galleïn, [146]
Gallic acid, [146]
Gallocyanin, [162]
Gambines, [161]
Garancin, [168]
Garden, naphthalene, [139]
Gas producers, [57]
Gas, quantity obtained from coal, [45]
Girard and De Laire, rosaniline blues, [92]
Glucosides, [169]
Goethe, visit to coke-burner, [48]
Græbe and Liebermann, alizarin, [170]
Graphite, [12]
Grässler, acid yellow, [120]
Green, A. G., primuline, [160]
Griess, diazo-compounds, [116]
Hales, Rev. Stephen, distils coal, [37]
Hofmann, benzene in tar-oil, [73]
Hofmann, red from aniline, [89]
Hofmann’s violets, [93]
Homologous series, [152]
Horse-power, [22]
Hull, Prof., coal supply, [59]
Hydrazines, [183]
Hydrocarbons of benzene series, [82]
Hydrogen, calorific value, [25]
Hydroquinone, [189]
Hypnone, [179]
Indigo plants, [124]
Indigo, syntheses, [126]
Indophenol, [162]
Indulines, [121]
Ingrain colours, [160]
Iodine green, [94]
Iron smelting, [16]
Iron swarf, [87]
Isochromatic plates, [188]
Isomerism, [88]
Joule, mechanical equivalent of heat, [19]
Juglone, [186]
Jurassic coal, [12]
Kairine, [182]
Kekulé, benzene theory, [196]
Kekulé and Hidegh, azo-dyes, [135]
Koch, tubercle, [193]
Köchlin, gallocyanin, [162]
Köchlin and Witt, indophenol, [162]
Kolbe, salicylic acid, [134]
Kolbe and Schmitt, phenol dye, [132]
Kyanol, [75]
Lampblack, [139], [166]
Laurent, phenol, [131]
Laurent, phthalic acid, [143]

Laurent, picric acid, [136]
Lauth, methyl violet, [98]
Lauth’s violet, [111]
Leonhardt & Co., stilbene dyes, [137]
Lightfoot, aniline black, [114]
Light oil, [80]
Light oils, early uses, [71]
Lister, antiseptic surgery, [131]
London, coal introduced, [58]
London, illuminated by gas, [40]
Lucigen burner, [163]
Madder, [168]
Magdala red, [149]
Magenta, history, [89]
Malachite green, [102]
Manchester brown, [116]
Manchester yellow, [142]
Mansfield, isolation of benzene, [73]
Mansfield’s still, [77]
Manures, [66]
Marsh gas, [32]
Mauve, discovery, [74]
Mechanical value of coal, [22]
Medlock, magenta process, [90]
Methyl chloride, [99]
Methylene green, [113]
Methyl green, [101]
Methyl violet, [98]
Mirbane, essence, [74]
Murdoch, introduces coal-gas, [40]
Naphthalene, annual production, [141]
Naphthalene in carbolic oil, [130]
Naphthionic acid, [151]
Naphthol green, [161]
Naphthol orange, [151]
Naphthols, [141]
Naphthylamines, [142]
Natanson, aniline red, [89]
Neutral red, [111]
Neutral violet, [111]
New blue, [161]
Nicholson blue, [93]
Nicholson, magenta process, [90]
Nietzki, azines, [109]
Nietzki, Biebrich scarlet, [156]
Nietzki, quinone, [191]
Night blue, [106]
Nigrosine, [121]
Nitrification, [66]
Nitrobenzene process, [91]
Nitrosodimethylaniline, [111]
Non-Carboniferous coal, [11]
Number of compounds in tar, [81]
Old Red Sandstone, coal in, [12]
Oligocene brown coal, [12]
Orthochromatic plates, [188]
Oxazines, [162]
Oxide of iron for gas purifying, [44]
Paraffin oil and wax, [50]
Patent fuel, [178]
Perfumes, [185]
Perkin, alizarin, [170]
Perkin, discovers mauve, [74]
Permanence of dyes, [198]
Permian coal, [12]
Persoz, phenol dye, [132]
Pharmaceutical preparations, [178]
Phenanthrene, [172]
Phenols, [129]
Phosgene dyes, [106]
Phosphine, [94], [180]
Photographic developers, [189]
Phthaleïns, [146]
Phthalic acid, [143]
Picric acid, [136]
Pitch, [81], [176]
Plants, growth of, [26]
Ponceaux, [151]
Primary azo-dyes, [156]
Primuline, [160]

Propiolic acid, [128]
Purpurin, [169]
Pyrazole, [183]
Pyridine, [87]
Pyridine bases, [179]
Pyrogallol, [146]
Quinaldine, [182]
Quinic acid, [189]
Quinoline, [180]
Quinoline green, [182]
Quinoline red, [188]
Quinoline yellow, [182]
Quinones, [172]
Read Holliday’s lamp, [72]
Rectification of hydrocarbons, [84]
Resorcinol, [145]
Rhodamines, [148]
Roccellin, [151]
Roman coal-mining, [57]
Rosaniline blues, [92]
Rosaniline from rosolic acid, [133]
Rosolic acid, [132]
Runge, kyanol, [75]
Runge, phenol in tar, [131]
Saccharin, [186]
Saffranine, [108]
Salicylic acid, [134]
Salicylic aldehyde, [185]
Salols, [179]
Schiendl, Magdala red, [149]
Scotland, shale-oil industry, [53]
Sea coal, [58]
Secondary azo-dyes, [156]
Shale, nature of, [51]
Shale-oil industry, [50]
Skraup, quinoline, [181]
Sodium nitrite, [119]
Solar energy, [28]
Soluble blue, [93]
Solvent naphtha, [86]
Steam-engines, [20]
Stilbene azo-dyes, [137]
Structure of coal, [15]
Sulphanilic acid, [150]
Sulphuric acid, [45]
Sunlight, source of energy in coal, [30]
Surgery, antiseptic, [131]
Tar distilling, [77]
Tar, first utilization, [69]
Tar from coke-ovens, [49]
Tar, quantity obtained from coal, [45]
Tartrazine, [184]
Tertiary coal, [12]
Thalline, [182]
Thermifugine, [182]
Thiazines, [113]
Thiodiphenylamine, [113]
Thiorubin, [160]
Timber pickling, [70]
Tolidine, [136]
Toluene from tar, [81]
Torbane Hill coal, [52]
Transformation of wood into coal, [31]
Triassic coal, [12]
Trimethylamine, [99]
Trinitrophenol, [136]
Triphenylmethane, [97]
Tubercle bacillus, [193]
Turkey red, [170]
Underclay, [13]
Unverdorben, crystallin, [75]
Uses of coal, [16]
Vanillin, [185]
Vegetable deposits, recent, [13]
Verguin, red from aniline, [90]
Victoria blue, [106]
Victoria yellow, [137]
Vinasse, [99]
Vincent, methyl chloride, [100]

Violaniline, [121]
Wasteful use of coal, [32], [203]
Water, composition of, [25]
Water gas, [203]
Watson, Bishop, coke-oven tar, [50]
Watson, Bishop, distils coal, [37]
Wealden iron industry, [17]
Whitaker, W., coal in S.-E. England, [60]
Winsor, promotes introduction of gas, [41]
Witt, azines, [109]
Witt, chrysoïdine, [116]
Witt, naphthol orange, [150]
Wood vinegar, [64]
Woody fibre, [26]
Woulfe, picric acid, [136]
Xylenes from tar, [81]
Xylidine scarlet, [153]
Young, James, burning-oil, [51]
Ziegler, tartrazine, [184]
Zinin, benzidam, [75]

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