INDEX

A
Accumulators or secondary batteries, [65]
Aerial craft experiments, [202]
Aerobic and Anaerobic bacteria, [234]
Afterdamp, [228]
Alcohol as a fuel, [49]
Alternating current, [35], [193]
Altofts, artificial coal mine at, [139]
Aluminium, [133]
Amalgam, [117]
Ammeters, [25]
Ammonia in making ice, [72]
Ammunition for big guns, [240]
Amperes, [22], [24]
Analysis and synthesis, [43]
Anode, [55]
Anschutz, Dr, [96]
Antennæ, [162], [171]
Anthracene oil, [48]
Arc, the, in wireless, [165]
Argon, the gas, [75]
Artesian wells, [45]
"Atmosphere," a unit of measure, [72]
Atoms, [56]
"Avogadro's Constant," [33]
B
Bacteria, beneficent, [234]
Ball mill, the, [115]
Battery, electrical, [23]
Benzine, [45], [48]
Bessemer, Sir H., [236]
Blowpipe, oxyhydrogen, [120]
Board of Trade Unit, the, [22]
Boiling water, [10], [76]
Bore of a gun, [236]
Boulders, blasting, [20]
Branly, [166]
"Brattice cloth," [224]
Breech of a big gun, [240]
Brennan torpedo, the, [102]
Brewing, [50]
"Brine" in machine-made cold, [70]
"Budding" of yeast, the, [51]
C
Calibre of a gun, [236]
"Capacity," 153
Capacity and inductance, electrical properties, [161]
Carbolic oil, [48]
Carbon, [11]
Carbonic acid gas, [10]
Carburetter, the, [46]
Cardiograms, [32]
Caselli, [176]
Cathode, [55]
Cavendish, investigations of, [73]
Cellulose, [12], [44]
Centrifugal tendency, [115]
"Character" of a lighthouse, [86]
Charge and current, [32]
Cheddite, [13]
Chemicals in waterworks, [232]
Chemistry, organic and inorganic, [42]
Chlorate of potash, [12]
Chloride of soda, [58]
Chronograph, the, [141]
Clark's Cell, [23]
Coal and oil, [47]
Coal, burnt, [10]
Coal-dust an explosive, [10]
Coal-dust, explosions from, [139]
Coal-pitch, [48]
Coal-tar, [48]
"Coasting" lights, [80]
Coherer, the, [103], [162], [167]
Coke in smelting, [125]
Colliery explosions, [137]
Colliery explosions, rescue apparatus, [226]
Colours of the spectrum, [213]
Colours of flowers, [213]
Compass, a ship's, [91]
Compressed air in torpedoes, [100]
"Concentrates," [115]
Condensers in wireless, [163]
Conservation of energy, [132]
Contact makers, [145]
Coronium, the gas, [74]
Corundum, [134]
Coulombs, [23]
Courrières colliery disaster, [221]
Creosote, [48]
Creosote oil, [48]
Crooks, Sir W., [33]
Crushing mills, [115]
Crystal detectors, [171]
Curie, M. and Mme., [33]
Curtis and Harvey, [9]
Cyanide process, the, [118]
Cyanogen, [118]
Cymogene, [45]
D
Detectors, [167]
Detonator, the, [14]
Dextro-glucose, [51]
Diamonds, [135]
Diesel engines, [46]
Direct-current electric motor, [191]
"Dirt-auger," the, [15]
Ditches, blasting, [18]
Drainage, [233]
Du Pont Powder Company, [9]
Duddell, W. H., [37]
Dufay dioptichrome process, [219]
Dynamite, what it is, [9], [12];
in agriculture, [13];
firing a charge, [16];
fruit trees, [16];
marshy ponds, [17];
ditches, [18];
tree stumps, [19];
boulders, [19];
wells, [20]
Dynamo, the, [65]
E
Eddystone Lighthouse, [80]
Edison's accumulator, [66]
Einthoven, Prof., [30]
Electric arc, the, [123]
Electric furnace, [125]
Electric fuse, the, [16]
"Electrical Inertia," [153]
Electrical battery, [23];
pressure, [23];
cells, [23];
measure, [24];
magnetism, [25]
Electricity, [22];
the current, [56];
electro-plating, [58];
purification of metals, [61];
secondary batteries, [62]
Electrode, [55]
Electrolysis, [55], [170];
in drainage, [234]
Electrolyte, [55]
Electrometer, the, [32], [34]
Electro-plating, [58]
Electros, [60]
Electroscope, the, [34]
Endosperm, the, [50]
Engines driven by oil fuel, [46]
Enzymes, [50]
Ether, [45], [149]
Ethyl alcohol, [49]
Explosions, [9];
in mines, [137]
Explosive link, the, [104]
Explosives for guns, [237]
F
"Falls" in a coal mine, [223]
Fermentation, [50]
Fessenden, R. A., [169]
Field guns, [241]
Filters in waterworks, [232]
Fire-damp, [137]
Firing-pin of torpedo, [102]
Flashing lights, [81]
Fog, effects of, [82]
Fog signals, [88]
"Fractional distillation," [76]
"Frequency," [36]
Frequency meter, [193]
Friction clutch, [195]
"Frue" vanner, the, [116]
Fruit trees and dynamite, [16]
Fuses, firing, [20]
G
Galvanometer, the, [27], [170]
"Gangue," the, [112]
Gauges, [208]
Gelignite, [12]
Glycerine in explosives, [11]
Gold, [110]
Guiding lights, [81]
Gyroscope, the, [93], [100]
H
Half-tone illustrations, [181]
"Hard-pan," [14]
Harris, Sir W. S., [36]
Hawke and Olympic, collision between, [198]
"Head" of the torpedo, [99]
Heat and electricity, [37]
Heat of the electric arc, [123]
Heat, testing by, [205]
Helium, [33], [75]
Hertz, [154]
Howitzers, [241]
Hughes, Prof., [159]
Humphrey Gas Pump, [231]
Hydraulicing, [112]
"Hydro-carbons," [45]
Hydrogen, liquid, [73]
Hydrometer, the, [65]
Hydrostatic valve of torpedo, [101]
"Hyper-radial" apparatus, [88]
I
Ice, machine-made, [71]
Indigo, synthetic, [44]
Inductance, [154]
Induction coil for wireless, [162]
Induction furnaces, [129]
Insulating ink, [177]
"Interference" of light waves, [159]
Ionisation of the atmosphere, [172]
Iron, [109]
J
Jupiter's moons, [150]
K
Kelvin, Lord, [28]
Kerosene, [46]
Kieselguhr, [12]
Kilowatt, the, [25]
Kinematograph in coal mine experiments, [146]
Korn, Prof., [183]
Krypton, the gas, [75]
L
Leclanche cell, the, [23]
Leyden jar, the, [153]
Light, speed of, [151]
Light waves, [151]
Lighthouse, the, [78]
Lighthouse lamp, the, [83]
Limit gauges, [209]
Liquid air, [73]
Lodge, Sir O., [159], [161]
Lumière autochrome process, [216]
M
Magnetic detector, the first, [168]
Magnetic pole, the, [90]
Magnetism, [25]
Magnets, [25]
"Making" light, the, [79]
Maltster, the, [50]
Mansfield Rescue Station, the, [224]
Marconi, [161]
Marshy ponds, to remove by dynamite, [17]
Mash tun, the, [50]
"Master compass," the, [97]
"Master" records, [60]
Maxwell, J. C., [152]
Measuring by electrolysis, [62]
Mendeluff's table, [74]
Mercury, [114]
Metallographic testing, [205]
Metals, testing, [204]
Methane gas, [10], [124]
Methyl alcohol, [49], [53]
Microbes, their use, [43]
Mine-laying, [105]
Mine-sweeping, [107]
Molecules, [56]
Morris, William, [233]
Mud, gold from, [122]
Muirhead, Dr, [167]
Murette or pedestal of lighthouse lamp, [85]
N
Naphtha, [45]
National Physical Laboratory, [199]
Natural frequency, [161]
Neon, the gas, [75]
Nickel chrome gun steel, [239]
Nitric acid, [11]
Nitro-cotton, [12]
Nitro-glycerine, [11]
Nitrogen gas, [9]
Nobel, inventor of dynamite, [12], [135]
Nodes, [157]
O
Ohm, the, [22], [24]
Ohmmeter, the, [27]
Ohm's law, [27]
Oil, mineral, [44]
Oil-producing countries, [47]
Optical apparatus of lighthouse, [86]
"Orders" of lighthouse apparatus, [88]
Ores, [110]
Orthochromatic plates, [212]
Oscillations, electrical, [36]
Oscillatory circuit, [154]
Oscillograph, Duddell's, [39]
Oxide of iron, [133]
Oxyacetylene flame, the, [131]
Oxygen gas, [10]
Oxyhydrogen jet, [130]
P
Paraffin wax, [45]
Patents, [174]
"Periodicity," [36]
"Personal equation," the, [207]
Petrol, [45], [52]
Petroleum, [44]
Phonograph, the, [60]
Plans of a ship, [199]
Plates of the secondary battery, [64]
Platinum, [184]
Plumbago in plating, [59]
Poulsen arc, the, [173]
Poulsen, Valdemar, [165]
Pressure gauges, [143]
Priestly, investigations of, [73]
Primary colours, [213]
Prisms, reflection of, [85]
Process blocks, [186]
Projectiles, velocity of, [237]
Propellers of the torpedo, [99]
Propellers, testing aerial, [203]
Prout's anonymous essay, [74]
Prussiate of potash, [177]
Purification of metals, [62]
Q
Quadrant electrometer, the, [35]
Quartz, [113];
fibre, [31], [131]
R
Radium, [33]
Ramsey, Sir W., [75]
Range-finding, [240], [242]
Rayleigh, Lord, [74]
Receiving instruments for wireless, [162]
"Record" vanner, the, [116]
"Rectifier," the, [37], [171]
Red rays of light, [82]
Reflection by prisms, [84]
Reflectors, lighthouse, [84]
Reiss electrical thermometer, [36]
Repeated-impact testing machine, [204]
Rescue teams for colliery accidents, [221], [222]
Resistance welding, [126]
"Resonance," an experiment, [160]
Reviving apparatus for coal mines, [229]
Rheostat, the, [188], [191]
Rhigolene, [45]
Rifling of a gun, [239]
Rubber, synthetic, [44]
Rubies, artificial, [131]
Rudders of a torpedo, [100]
Rutherford, Prof., [33], [168]
S
Saccharine, [48]
Saltpetre, [12]
Schwartzkopff torpedo, the, [99]
Scilly Island lighthouse, [80]
Sea, gold in the, [120]
Secondary battery, the, [62]
"Sectors," [81]
Selenium, [184]
"Self-rescue" apparatus, a, [228]
Shale, oil from, [45]
Shells for guns, [239]
Ships, testing by models, [200]
Short circuit, [179]
"Shunt," the, [165]
Sighting a big gun, [241]
Silica, [133]
Skating rinks, ice in, [71]
"Sludge" and "effluent" of drainage, [233]
Spark detectors, [166]
Spark-gap, [162]
Spectrum, the, [213]
Spinthariscopes, [33]
Spirits, [52]
Springs, testing, [203]
Stamps for crushing quartz, [113]
Starch grains in colour photography, [217]
"Step-down" and "step-up" transformers, [127]
"String galvanometer," the, [30]
Submarine mines, [104]
Submarine telephone, [88]
Sulphuric acid, [11], [43]
Sunlight, composition of, [213]
Synchronism, difficulties of, [182], [191]
Synthetic substances, [44]
T
"Tamping," [15]
Tank for testing at Teddington, [201];
New York harbour, [201]
Telautograph, the, [180]
Telectograph, the, [180], [185]
Telegraph key for wireless, [162]
Telewriter, the, [187]
Temperature, measuring, [38]
Tesla, Nicola, [164]
Testing by heat, [205]
Testing machines, [206]
Thermit, [135]
Thermo-couple, the, [38]
Thermo-galvanometer, the, [37]
Thomson Mirror Galvanometer, the, [28]
Thomson, Prof., S., [159]
Torpedo, the, [98]
Training station at Porth, [225]
Transformer, the, [127]
Transmitting instruments, [163]
Travers, Prof., [75]
Tree stumps, blasting, [19]
Tuning-fork a standard of speed, [193]
Turret of a battleship, [240]
U
Ultra-microscope, the, [209]
Ultra-violet rays, [172]
V
Varley and the Atlantic cable, [28]
Vaseline, [46]
Veins or lodes, [113]
Vickers, [202]
Voltmeter, the, [26]
Volts, [22], [24]
W
Water a source of heat, [124]
Water, soft and hard, [232]
Watt, the, [24]
Waves caused by ships, recording, [200]
Wax models of ships, [199]
Welding by electricity, [125]
Wells, blasting, [20]
Welsbach mantle, the, [124]
Whitehead, [99]
Wire guns, [238]
Wireless telegraphy, [161], [173]
Wireless torpedo, the, [102]
Wood-meal in explosives, [12]
Wood spirit, [49]
"Working fluid," the, [68]
Y
Yeast, [51]
Z
Zero, [68]
Zinc in gold recovery, [119]

FOOTNOTE:

[1] The glow-worm is an example of the few exceptions.

THE RIVERSIDE PRESS LIMITED, EDINBURGH
1917