You are only a boy now, but when in years to come you are quite old and have grey hair you may become a Member of the Air Board and—who knows—it may become your duty to decide that this great invention shall be always used on the training grounds to save the lives of the young men, not yet born, who are then learning to fly. During the War, one was killed every day, 365 in a year, many of whom might have been saved had more "Guardian Angels" been in use.
INDEX
- Acetone, [36], [57], [58]
- Acetylene, [58]
- Aeroplanes, types of, [285], [286]
- Air-raft equipment, [89]
- Alcohols, [49], [50], [51], [52], [55], [139]
- Aluminium, [157]
- Anchors for floating bridges, [80]
- Anti-aircraft guns, [119]
- Aquitania, s.s., [197]
- Armourer, [17]
- Austrian heavy mortars, [111], [114], [117]
- Bamboo, bridges made of, [87]
- Basic steel, [101]
- Becquerel, H., [40]
- Benzene, [35]
- Bessemer, Sir Henry, [93], [98], [99], [100], [102]
- Blast-furnace, [94], [95]
- Boilers in warships, [176]
- Breech-block of guns, [131], [132]
- "Brennan" torpedo, [219]
- Calthrop, E. R., [300], [311]
- Canet, Gustave, [129]
- Canvas boats, [86]
- Carbolic acid, [35]
- Carbon, [28], [50], [94], [98]
- Carbon in steel, [106]
- Carbon monoxide, [95]
- Carriages of guns, [116]
- Cast iron, [96], [97]
- Catamaran bridge, [90], [91]
- Caustic soda, [22], [23], [24]
- Chloride of lime, [23]
- Chlorine, [18], [19], [21], [23], [52]
- Chloroform, [59]
- Clerk-Maxwell, Professor J., [243]
- Coal dust explodes, [29]
- Coal tar, [34]
- Contact-firing mines, [65]
- Copper, [147]
- Cordite, [36]
- Cotton explosives, [32], [33]
- Countermining, [63], [73]
- Crucible steel, [104]
- Curie, Madame, [41]
- Detonator, [37]
- Diastase, [55]
- Diesel engine, [178], [236]
- Dreadnought, H.M.S., [194]
- Driving-band on shells, [142]
- Dynamite, [31]
- Electricity, positive and negative, [20], [21]
- Electrodes, [19]
- Electrolysis of salt, [18], [19]
- Electrolyte, [19]
- Electrons, [42]
- Electroscope, [43]
- "Elia" mines, [70]
- Ethane, [51]
- Ether, [58], [59]
- Explosion, force of, [30]
- Field guns, [108], [114]
- Flotilla leaders, [189]
- Fractional distillation, [35], [57]
- French field artillery, [108]
- Froude, William, [203]
- Fulminate of mercury, [37]
- Glycerine, [25]
- Gravity, action of upon shells, [122], [123], [124]
- "Guardian Angel" parachute, [300]
- Gun-cotton, [32], [33]
- Gunpowder, [27], [30]
- Gyroscope, uses of, [216], [234]
- Helium, [42]
- Hertzian waves, [243]
- High explosives, [36], [138]
- High-explosive shells, [137]
- High-speed steel, [105]
- Hop-pole bridges, [88]
- Horse artillery, [108], [114]
- Howitzers, [111], [114], [115]
- Hydrostatic valve, [68], [217]
- Hydroxyl, [52], [53]
- "Interference" of waves, [241], [248]
- Invincible, H.M.S., [196]
- Ionogens, [20]
- Ions of common salt, [19]
- Iron ore, [93]
- Kieselguhr, [32]
- Ladysmith, guns at, [109]
- Launching a ship, [211]
- "Limit" gauges, [140]
- Line-of-battle ships, [191]
- Lion, H.M.S., [197]
- Lyddite, [35]
- Machine guns, [115]
- Magnetic detector, [257]
- Malt, [55]
- Marconi, [248]
- Methane, [51]
- Methylated spirit, [54]
- Mine, submarine, [63] et seq.
- Mine, subterranean, [61]
- Mortars, [111], [112], [113], [114], [118]
- Naval guns, [112], [120] et seq.
- Naval shells, [136], [137]
- Nitrate of potassium, [30]
- Nitro-benzene, [35]
- Nitro-glycerine, [26], [31], [32]
- Nitrogen, action of, [26], [30]
- Observation mines, [65]
- Oil fuel, [177]
- Olympic, s.s., [197]
- Organic substances, [26]
- Orion, H.M.S., [193]
- Parachutes, [297]
- Paraffins, [51]
- Periscope, [225], [233]
- Petrol engine, [181], [182]
- Phenol, [35]
- Picric acid, [35]
- Pig iron, [95], [97]
- Poison gas, [23]
- Pontoons for bridging, [77]
- Propellants, [36], [125], [138]
- Radio-activity, [41]
- Radium, [39] et seq.
- Rays from radium, [41], [42]
- Reeds, bridges made of, [85]
- Repulse, H.M.S., [192]
- Rheumatism and radium, [47]
- Rifling in guns, [143]
- Rolling mills, [98], [139]
- Salt and explosives, [18]
- Saltpetre, [27], [29], [30]
- Scott, Sir Percy, [109]
- Sea-planes, [287]
- Shell-steel, [146]
- Shrapnel shells, [137], [144], [145]
- Siemens steel, [102], [103]
- Sights for guns, [133]
- Smokeless powder, [31]
- Soap, [25]
- Sodium, [18], [22]
- Soluble seal used in mines, [72]
- Spinning action of shells, [142]
- Stability of aeroplanes, [293]
- Steam-engines, [170]
- Steel for guns, [126]
- Sulphuric acid, [31], [32], [150]
- Suspension bridges, [83]
- "Tanks," 276
- Telephone used in telegraphy, [266]
- Tin, [152], [153]
- T.N.T., [35]
- Toluene, [35]
- Torpedo boats, [184]
- Trajectory, [122]
- Trench mortars, [118]
- Trestle bridges, [80], [83]
- Tri-nitro-benzene, [35]
- Tri-nitro-phenol, [35]
- Tri-nitro-toluene, [35]
- Tungsten, [105], [153]
- "Tuning" wireless telegraph apparatus, [255]
- Turbine, steam, [17]
- Uranium, [41]
- "Whitehead" torpedo, [215]
- Wire-wound guns, [128]
- Wolfram, [153]
- Wood spirit, [57]
- Wrought iron, [97]
- Wyoming, U.S. battleship, [195]
- X-rays, [42], [43]
- Zeppelin v. aeroplane, [46]
- Zinc, [149], [150], [151]
PRINTED BY WILLIAM BRENDON AND SON, LTD., PLYMOUTH, ENGLAND. 1917
Great Classics for Little Children