  | PAGE | | Accident to my large machine, | 138 | | Action of aeroplanes and power required, | 100 | | Adjustment of birds’ wings, | 19 | | Admiralty specification for a steamship, | 48 | | Advantages of driving aeroplanes on to new air, | 140 | | Advantages and disadvantages of very narrow planes, | 143 | | Aeroplanes:— | | Action of, | 31, 32, 100 | | Advantageous angle of, | 139 | | Advantages and disadvantages of very narrow, | 143 | | Advan„ages arising from driving aeroplanes on to new air, | 140 | | Curvature of, | 145 | | Evolution of a wide aeroplane, | 102 | | Experiments with, | 49-59 | | Fabric covered, | 131 | | Lifting effect of, | 141 | | Lifting surface of, | 103 | | Philipps’ sustainers, | 146 | | Reduction of projected horizontal area, | 3, 4 | | Shape and efficiency of, | 99 | | Superposed, | 144, 146 | | Testing fabrics for, | 50 | | The paradox aeroplane, | 88 | | Air currents and the flight of birds, | 11 | | Air cu„rentsConclusions regarding, | 21 | | Air cu„rentsAlpes Maritimes, | 17 | | Air cu„rentsMediterranean, | 18 | | Air cu„rentsMid-Atlantic, | 16 | | Air cu„rents2,000 feet above the earth’s surface, | 22 | | Air cu„rentswitnessed at Cadiz, | 20 | | Angles and degrees compared, | 115 | | Antoinette motor, The, | 89 | | Balloons, | 120 | | Bal„oons spiders, | 27 | | Birds as thermo-dynamic machines, | 153 | | Bi„ds Two classes of, | 23 | | Bleriot’s machine, | 113 | | Boiler experiments, | Recent machines, | 109 | | Relative value of woods for flying machines, | 85 | | Reserve energy necessary in flying machines, | 30 | | Resistance encountered by various shaped bodies, | 52 | | Rotating arm experiments, | 64-72 | | Santos Dumont’s flying machine, | 113 | | Screw blade on Farman’s machine, | 41 | | Sc„ew blades, Testing of, | 36 | | Sc„ew bl„des, used by the French Government, | 39 | | Sc„ew bl„des, with radial edges, | 43 | | Sc„ew Fabric-covered, | 40 | | Sc„ew Position of, | 49 | | Sc„ew propeller made of sheet metal, | 41 | | Sc„ew propellers, Efficiency of, | 33, 147 | | Screws, | 8, 31, 35, 36, 40, 41, 46, 47, 49 | | Scr„ws, Building up of my large, | 40 | | Scr„ws, their efficiency in steamships, | 47 | | Shape and efficiency of aeroplanes, | 99 | | Skin friction, | 41, 48 | | Spider’s webbing down from the sky, | 27 | | Spirit lamp and ice box, | 62 | | Stability of flying machines, | 147, 150 | | Steam engines used by me, | 155 | | Steering, | 147, 149 | | Superposed aeroplanes, | 144 | | System of splicing and building up wooden members, | 86 | | Tables:— | | Equivalent inclinations, | 115 | | Equi„alent velocities, | 116 | | French and English measurements, | 128, 129 | | Philipps’ experiments, | 119 | | Relative value of different woods, | 85 | BELL AND BAIN, LIMITED, PRINTERS, GLASGOW.
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