INDEX
- Abbe, Cleveland, 200, 437.
- Acosta, 10.
- Ader, C. F., 222–226.
- Aërial Experiment Association, 264–267, 305.
- Aëro Club of America, 243, 244, 322, 323.
- of France, 106, 256, 258, 259, 301.
- of Great Britain, 287.
- Aëro Corporation Limited, 322.
- Aërodrome, 111, 194, 240, 292.
- Aëronat, 126.
- Aëronautic meteorology, 347 et seq.
- Aëronautic Society of New York, 284.
- Aëronautical Annual, 215, 227, 427.
- Aëronautics, 252.
- Aërophile, 130, 166, 340.
- Aëroplanes, Ader’s, 222–226.
- advances in, in 1909, 283, 284.
- Aërial Experiment Association’s, 264–267.
- Antoinette, 288, 289, 320, 324.
- Blériot’s, 267–270, 286, 287, 290–292, 299, 300, 309.
- Bréguet’s, 313.
- Chanute and Herring’s, 218–221.
- Cody’s, 305.
- competitive flying of, 283 et seq.
- cost of, 342.
- Curtiss’, 264–266, 284–286, 294–300, 316, 317, 322, 333.
- Delagrange’s flights with, 261–263.
- Demoiselle, 324.
- Deperdussin’s, 399.
- earliest public flight of, 257.
- Esnault-Pélterie’s, 304, 314, 337.
- Etrich’s, 335, 336.
- Fabre’s, 332, 335.
- Farman’s, Henri, 259–264, 298, 303, 305, 321.
- Farman’s, Maurice, 305, 311.
- first tour in, 268–270.
- first town-to-town flight in, 264.
- Grade’s, 304.
- Hanriot’s, 339.
- Herring’s compressed air, 221, 222.
- impossibility of, 12.
- Langley’s, 239–243.
- launching of, 202.
- Le Bris’, 203–205.
- Lilienthal’s, 207–209.
- Mattullath’s, 235–239.
- Maxim’s, 226–228.
- model, 173 et seq.
- Montgomery’s, 251–255, 282.
- Mouillard’s, 207–209.
- Nieuport’s, 339.
- nineteenth century, 202 et seq.
- Paulhan’s, 324, 325.
- Pilcher’s, 216–218.
- public flying, 256 et seq.
- reliability of, 341.
- Santos-Dumont’s, 256–258, 303, 324.
- stability of, 232–234.
- stable and powerful, 235 et seq.
- Tellier’s, 312.
- utility of, 341.
- Voisin’s, 259, 267, 313.
- Wright brothers’, 245–249, 270–282, 309, 324, 326, 329.
- Zahm’s system of control of, 229–231.
- Aërostal, 22.
- Æschylus, 29.
- Agobard, 22.
- Ailerons, 286.
- Air bag, 83.
- Air friction, 238, 239.
- Airscout, 11, 12.
- Allen, Gen. James, 271.
- Alps, Chavez’s flight across, 318, 319.
- Altitude records, 307–309.
- American Engineer and Railway Journal, 229.
- American military dirigible, 138.
- Antoinette monoplane, 288, 289, 309, 320, 324, 340.
- Archdeacon, Ernest, 256.
- Archibald, Douglass, 77.
- Archytas of Tarentum, 198.
- Arlandes, Marquis de, 38–42.
- Ascending trend of wind, 211.
- Assman, Professor, 72.
- Astra Society, 120, 123, 124.
- Atmosphere, composition of, 348–350.
- cyclones, tornadoes, waterspouts, 394 et seq.
- general circulation of, 376–380.
- general properties of, 347 et seq.
- permanent and periodic winds, 376 et seq.
- temperature and pressure, 363 et seq.
- thunderstorms, windgusts, 422 et seq.
- Aubrun, Emile, 331.
- Audemars, 324.
- Automobile Club of France, 321.
- Bacon, Roger, 20.
- Balance, complete dynamical, 234.
- Baldwin, F. W., 264, 266.
- Thomas S., 138.
- Ballonets, 95.
- Ballons sondes, 72.
- Balloon, dirigible:
- Baumgarten and Wölfert’s, 99.
- Belgique, 129.
- Blanchard’s, 79, 80.
- British and American, 130, 131.
- Clément-Bayard I, 123.
- Clément-Bayard II, 131, 132, 133.
- combined with aëroplane, 123.
- Colonel Renard, 124, 126.
- development of rigid, 145 et seq.
- Dupuy de Lome’s, 19, 92, 93.
- early experiments with Zeppelin, 147–150.
- early gasoline driven, 10 et seq.
- electric, 92–97.
- España, 124, 126, 127.
- first designs for, 78–86.
- general design of Zeppelin, 146, 147.
- German aërial fleet, 141, 142.
- German nonrigid, 138.
- Giffard’s, 90, 91, 98.
- Gross type of, 138, 139, 140, 471–473.
- Hänlein’s, 98.
- Hopkinson’s suggestion for, 84.
- Italian, 130.
- Jaune, 115, 116.
- Jefferson’s suggestion for, 84.
- Jullien’s model, 88.
- Lebaudy, 116, 117.
- Lebaudy’s, 115–120, 134–137.
- Liberté, 120.
- maneuvers at Cologne, 143, 144.
- Meusnier’s designs for, 85, 86.
- Miolan and Janinet’s, 81.
- Morning Post, 134.
- muscular driven, 80, 82, 85, 92.
- Parseval type of, 138, 139, 140–143, 473–476.
- Patrie, 115, 118, 119.
- Porter’s, 86, 87.
- practical development of nonrigid, 115 et seq.
- practical speed of, 101.
- Renard and Krebs’, 93–97.
- Republique, 115, 118, 119, 466.
- Robert’s, 81, 82, 83.
- Russie, 120.
- Santos-Dumont’s, 102–114.
- Schwartz’s, 99, 100.
- steam, 87, 89.
- successful military, 456.
- two systems of, 101.
- types of, 122.
- U. S. Military I, 138, 476, 477.
- Ville de Nancy, 124, 125.
- Ville de Paris, 120–123, 467–471.
- voyage of across English channel, 132, 136, 137.
- in Zeppelin, 153–156.
- Zeppelin IV, explosion, 157, 158.
- Zeppelin passenger service, 167–169.
- Zeppelin type of, 145–169.
- Zodiac type of, 127, 128, 129.
- passive:
- cabinet for lofty ascents in, 71, 72.
- Charles’ passenger, 42, 43.
- cruise of, from London to Weilburg, 54.
- dragon fire-inflated, 20.
- earliest conceptions of, 18, 29.
- earliest experiments with, 30, 31, 32.
- early history of, 29 et seq.
- first coal gas, 54.
- first human passengers in, 38.
- first hydrogen, 35.
- first passengers in, 37.
- first scientific ascension in, 44, 45.
- Glashier’s observations in, 64–70.
- highest ascent of, 69, 70, 71, 72.
- instruments and adjuncts to, 76, 77.
- largest hot air, 48–50.
- largest gas, 70, 71.
- longest voyage of, 74.
- modern spherical, 75.
- Nadar’s Geant, 60, 61.
- practical development of, 54 et seq.
- principle of, 18.
- public inauguration of, 33, 34.
- recent improvements in, 76, 77.
- ripping panel of, 74, 75.
- sounding and pilot, 72.
- voyage across the Atlantic in, 74, 75.
- across the English channel in, 50, 52.
- Paris to Meaux in, 61, 62.
- Paris to Nienburg in, 62, 63.
- Balsan, 74.
- Baltimore aviation meet, 319.
- Baltimore Sun, 319.
- Barometric pressure, 363 et seq.
- distribution of, 370–374.
- gradient of, 370.
- high and low areas of, 372.
- hygrometric features of, 373.
- mechanical features of, 373, 374.
- modifying conditions of, 371, 373.
- surfaces and lines of equal, 370, 371.
- Basenach, 138.
- Baumgarten, 99.
- Belgique, the, 129.
- Bell, A. G., 194, 244, 264–267.
- Bell, Mrs. A. G., 264.
- Belmont Park, 310, 322.
- Bennett international contests, 75, 292–301, 325, 326.
- Berson, Professor, 70.
- Betheny Plain, 292.
- Bielovucic, Jean, 313.
- Bigelow, Professor, 412, 413.
- Biplane, 174, 220.
- Birds, armed against airships, 11.
- as men carriers, 10, 11, 12.
- major limit of, 11, 12.
- Bishop, Cortlandt Field, 285.
- Black, 29.
- Blanchard, 15, 16, 18, 50, 79, 80.
- Blériot, Louis, 267–270, 286, 287, 290–292, 299–300, 380–382.
- Bréguet, Louis, 313.
- Brookins, Walter, 309, 326.
- Brown, D. S., 193.
- Bubbles, soap and varnish, 30.
- Calm belts, 381.
- Cammerman, Lieutenant, 314.
- Cardan, 10.
- Catapult, 240, 338.
- Cavallo, 30, 31.
- Cavendish, 29.
- Cayley, Sir George, 181, 182.
- Chanute, Octave, 15, 181, 218–221, 245, 250, 256, 260.
- Charles, 35.
- Charlière, 42.
- Chauvière, 125, 136, 331, 339.
- Chavez, George, 318, 319.
- Circuit de l’Est, 339, 331.
- Clément-Bayard, the, 123, 131–133, 456–459.
- Cody, S. F., 305.
- Colonel Renard, the, 124, 126.
- Compagnie General Transaerienne, 124.
- Control, three rudder system of, 229–331.
- Coulomb, 17, 18.
- Country Life, 321.
- Coxwell, 64–70.
- Critical temperature and pressure, 351.
- Cross-country records, 311–314.
- Curtiss, Glenn H., 138, 264–266, 282, 284–286, 294–300, 316, 317, 322, 323, 481 et seq.
- Cyclone, frequency of, 403, 404.
- motions and pressures in, 395, 400.
- motive power of, 395.
- nature of, 394.
- progression of, 401–403.
- stationary, 403.
- Daedalus, 3, 4, 5, 6.
- Daily Mail, London, 314.
- Daimler engine, 99, 150.
- Dante, J. B., 13, 14.
- Dauberck, Dr. W., 403.
- Da Vinci, 8, 9.
- De Bacqueville, 13, 14.
- Delagrange, Leon, 261–263.
- Delcourt, Dupuis, 100.
- De Laland, 16, 18.
- De Lesseps, Count, 327, 328.
- De Lome, Dupuis, 91, 92, 93.
- Demoiselle monoplanes, 324.
- Déperdussin, 339.
- Deutsche de la Meurthe, 120 259.
- Dew point, 358.
- Dientsbach, Carl, vii, 164.
- Distance records, 311–314.
- Doldrums, 381.
- Doubleday, Page & Co., 478.
- Drift, defined, 186.
- Dubonnet, 312.
- Du Cros, Arthur, 131.
- Dutrieu, Helene, 321.
- Dynamic flyers, 174.
- Endurance records, 311–314.
- Engine, Daimler, 99, 150, 163.
- Gnome, 312.
- Körting, 139.
- Mercedes, 140.
- Panhard-Levassor, 136.
- Rénault, 311.
- Vivinus, 129.
- Engineering News, 435.
- English Channel flights, 50–53, 56, 137, 289–292.
- English military dirigibles, 130–137.
- Eole, 223.
- Equator of balloon, 76.
- Equilibrium, of angels, 7, 8.
- Esnault-Pélterie, Robert, 304, 314, 337, 340.
- España, the, 124, 126, 127.
- Espy, 419, 420.
- Etrich, Igo, 335, 336.
- Fabre, 332–335.
- Farman, Henri, 259–264, 298, 303, 305, 321.
- Maurice, 305, 311.
- Federation Aëronautique International, 322, 323.
- Fequant, Lieutenant, 312.
- Ferber, Captain, 256.
- Ferrel, W., 356, 376–379, 397, 413, 436.
- Fin, 229.
- Flesselle, the, 48, 49, 50.
- Flexible balloons, 122, 123.
- Fluctuating winds, 427–439.
- cause of, 436–438.
- impact of, 435, 436.
- Flying machine, impossibility of, 12, 17.
- Flying machine models, 173 et seq.
- Abbe’s proposed, 200.
- Cayley’s aërial glider, 181, 182.
- Da Vinci’s helicopter, 175.
- Da Vinci’s parachute, 177, 178.
- Forlanini’s helicopter, 200.
- Garnerin’s parachute, 179.
- Hargrave’s, 190, 191.
- Helicopter, 198–201.
- Henson’s aëroplane, 182–184.
- Henson and Stringfellow’s, 184, 185, 187.
- Langley’s, 192–197.
- Launoy and Bienvenu’s, 198, 199.
- Lenormand’s parachute, 177, 178.
- Paper traveling parachutes, 180, 181.
- Penaud’s toy, 188.
- Phillips’ aëroplane, 191, 192.
- Phillips’ helicopter, 199.
- Tatin’s aëroplane, 189.
- Veranzio’s parachute, 177, 178.
- Wenham’s aëroplane, 185, 186.
- Zanonia Macrocarpa, 180.
- Forbes, A. Holland, 6.
- Forlanini, Professor, 200.
- Fort Myer flights, 138, 272, 275–281.
- Foulois, Lieutenant Benjamin, 278.
- France, the, 93–97.
- Franklin, Benjamin, 48, 446.
- Free air, composition of, 349.
- conditions of precipitation in, 351, 352.
- critical points of constituents of, 351.
- dynamical properties of dry, 353, 356.
- friction of, 239.
- humidity and density of, 358–361.
- kinds of expansion of, 361, 362.
- properties of moist, 357, 361.
- French Academy, 17, 35.
- French dirigibles, 88–129.
- Garnerin, Jacques, 179.
- Garros, 324.
- Gasnier, Réné, 340.
- German Airship Society, 166, 167.
- German dirigibles, 138–169.
- Giffard, Henri, 71, 88, 89, 90, 91.
- Glaisher, James, 68–70.
- Gliding machines, 203–221, 245–248.
- Gnome engine, 312, 331, 340.
- Godard, 62, 74, 129.
- Gold-beater skin balloons, 30, 88.
- Grade, 314.
- Grahame-White, Claude, 315, 316, 319, 325, 327, 328.
- Gravitational stability, 233.
- Green, Charles, 54.
- Gross, Major von, 138.
- Gross dirigibles, 138, 139, 140.
- Guide rope, or drag rope, 56, 76, 111, 114.
- Hailstorms and hailstones, 415–419.
- Hamilton, C. K., 313.
- Hammer, W. J., vii.
- Hangar, 126.
- Hänlein, 98, 99.
- Hann, 365.
- Hanriot, 339.
- Hargrave, Lawrence, 190, 191, 250, 260, 339.
- Harmon, Clifford B., 321.
- Hawley, A. R., 75.
- Hazen, Prof. H. A., 435.
- Hearne, 131, 228.
- Helicopters, 198–201.
- Helmholtz, Prof. Ludvig von, 436–438.
- Henson, 182–184.
- Herring, A. M., 218–222, 245, 271.
- Holland, Robert, 54.
- Hopkinson, Francis, 84.
- Horner, 414.
- Hoxsey, Arch, 309, 324.
- Huffaker, E. C., 247.
- Hull, best forms of, 88, 97, 98, 113.
- stiffening of, by internal pressure, 83, 86.
- Humidity, absolute, 359.
- percentage of, 358.
- Humphreys, Dr. W. J., vii, 349, 370.
- Hydro-aëroplanes, 332–334, 481 et seq.
- Hydrogen balloon, invention of, 29–31, 35.
- first ascent of, 36.
- Hydrogen bubbles, 29.
- Icarus, 3, 4, 5.
- Ice, launching from, 265.
- Indian seed parachute, 180.
- Inherent stability, 229.
- Insolation, effect on density of air, 364.
- quantity of, received, 364–366.
- Isobaric lines and surfaces, 371.
- Isothermal lines, surfaces, 366, 367.
- Isothermal layer, 370.
- Italian Aviation Society, 318.
- Italian military dirigibles, 130.
- Jaune, the, 115, 116.
- Jefferson, Thomas, 84.
- Jeffries, 50.
- Johnstone, Ralph, 309, 324, 329.
- Jullien, 88.
- Julliot, Henri, 115, 134, 136.
- June Bug, the, 266, 267.
- Kai Kaoos, 8, 9, 10.
- Kapferer, H., 120, 294.
- Keel surface, 120.
- Kinet, Daniel, 312.
- Kinetic stability, 233.
- Kite balloon, 77.
- Körting, 139.
- Krebs, Captain, 93–97.
- Kress, Wilhelm, 214.
- La Belgique, 129.
- La España, 124, 126, 127.
- La Flesselle, 48, 49, 50.
- La France, 93–97.
- Lahm, Lieutenant Frank P., 272, 277.
- La Liberté, 120.
- Lambert, Count de, 273, 302.
- Lana, 23, 24.
- La Nature, 312.
- Land-and-sea breezes, 392.
- Landelle, G. de la, 203.
- Langley, S. P., 187, 192–197, 211, 231, 232, 239–245, 251, 427, 433, 434, 439.
- La Patrie, 115, 118, 119, 459–465.
- La République, 115, 118, 119.
- La Russie, 120.
- Latent heat of condensation, 364.
- Lateral balance of aëroplane, 229–231.
- Latham, Hubert, 283, 288–290, 291, 319, 320, 324.
- Launching an aëroplane, 202, 230, 256, 258, 259, 265.
- Launching methods, 202, 240, 258, 259, 265.
- Launoy and Bienvenu, 198, 199.
- Laurens, 314.
- La Ville de Paris, 120–123.
- Lebaudy, the, 116, 117.
- Le Blanc, Alfred, 273, 290, 310, 313, 326, 331.
- Le Clément-Bayard, 123, 131–133, 456–459.
- Le Colonel Renard, 124, 126.
- Lefebvre, 293.
- Leganeaux, U. G., 311, 319.
- Lenormand, Sebastien, 177, 178.
- Levino, A. S., vii.
- Lift, defined, 186.
- Lilienthal, Otto, 210–216, 250.
- London Daily Mail, 289.
- Loomis, 402, 414.
- Lord Rayleigh, 6, 427.
- McCurdy, J. A. D., 264.
- MacMechen, 164.
- Madison, James, 84.
- Malecot, 123.
- Maloney, D., 251–255.
- Manley, Charles M., 242, 245, 251, 285.
- Marconnet, Captain, 312.
- Marey, Professor, 427.
- Marvin, Prof. C. F., 435.
- Mason, Monck, 55.
- Mattullath, Hugo, 231, 235–239.
- Maxim, Sir Hiram S., 226–228, 245.
- Mendoza, 19.
- Mercedes, 140.
- Meteorological Journal, 435.
- Meusnier, General, 85, 86.
- Michelin prize, 273, 303, 311, 314, 321.
- Milton, 7.
- Moisant, John, 31, 328.
- Monaco, Prince of, 111.
- Monge, Marey, 100.
- Monoplane, 174.
- Monsoons, 385–391.
- Montgolfier, 29, 37, 50.
- Montgolfière, 42.
- Montgomery, Prof. J. J., 251–255, 282, 339.
- Moore, Willis L., 349, 405, 422.
- Morane, 310.
- Morning Post, 131, 134–137.
- Motors, 340.
- Antoinette, 254, 258.
- Clément-Bayard, 458.
- Daimler, 99, 150, 163.
- Electrical, 92, 95.
- Gnome, 312.
- Körting, 139.
- Mercedes, 140.
- Panhard-Levassor, 136.
- Rénault, 311.
- steam, 228, 234.
- Vivinus, 129.
- Mouillard, L. P., 206–209.
- Mountain-and-valley winds, 293.
- Munn & Co., 481.
- Muscular flight, 3–7.
- Nadar’s balloon, the Geant, 60.
- Nassau, Great Balloon of, 55.
- Nature, 217, 427.
- Nieuport, 339.
- Northcliffe, Lord, 305.
- Olieslaegers, Jan, 311.
- Orthopters, 174.
- Ovid, 3.
- Panhard-Levassor, 136.
- Parachutes, 176–81.
- Parseval dirigibles, 138, 140–143.
- Parseval, Major von, 77, 138.
- Passive fliers, 174.
- Patrie, the, 115, 118, 119, 459–465.
- Paulhan, Louis, 284, 293–296, 305, 311, 315, 316, 317, 324, 325.
- Peltier, H., 456.
- Pénaud, A., 188.
- Pendular stability, 233.
- Philadelphia Ledger, the, 313.
- Phillips, Horatio, 191, 192, 199.
- Picardie military maneuvers, 131.
- Pilcher, 216–218, 246.
- Polignac, Marquis de, 301.
- Porter, Rufus, 86, 87.
- Post, Augustus, 6, 75.
- Power expended in flight, 6, 7.
- Power flyers, 174.
- Pressure, critical, 351.
- atmospheric, 370–374.
- Preussen, the, 70.
- Projectile stability, 232.
- Propeller, Chauvière, 125, 136.
- Puy de Dome, 314.
- Pylons, 292.
- Rayleigh, Lord, 6, 427.
- Records, aëroplane,
- altitude, 307–309.
- cross-country, 311–314.
- distance, 311.
- duration, 311–314.
- load, 311–314.
- speed, 310–311.
- Red Wing, 265, 266.
- Relative humidity, 358.
- Renard, Captain, 93–97, 210.
- République, the, 115, 118, 119.
- Reye, Dr., 414.
- Rheims aviation contests, 292–301.
- Riedinger, August, 140.
- Rigid balloons, 122.
- Robert, 42, 45, 81, 82, 83.
- Roc, 11.
- Rolls, Hon. C. S., 321.
- Romain, 52.
- Rotch, A. Lawrence, 380–382.
- Rougier, 302.
- Rozier, Pilâtre de, 38, 52.
- Rudders, aëroplane, 245, 246.
- three-torque, 229–231, 247, 248.
- Ruskin, John, 7.
- Russie, the, 120.
- Ryan, Allan A., 327.
- Thomas F., 327.
- Sabathier, 131, 132.
- Saddle bird, 8.
- Saint-Marcq, Com. Le Clément, 438.
- Sandt, Emile, 153.
- Santos-Dumont, Alberto, 102–114, 303, 324, 356–359.
- Saturation, 358.
- Scaliger, 10.
- Schottus, 19.
- Schwartz, 99, 100.
- Scientific American, 86, 153, 443, 481.
- Screw, da Vinci’s, 176.
- metal, 340.
- radial-arm, 129, 242, 340.
- wooden, 339.
- Selfridge, Lieutenant T., 264, 265.
- Signal Corps Dirigible No. 1, 138, 476, 477.
- Signal Corps, U. S., vi, 271, 272, 276–281.
- Signal Service, U. S., 417–419.
- Sigsfeld, Captain von, 77.
- Silver Dart, 305.
- Skin-friction, 238, 239.
- Soaring, early attempts at, 13.
- winds helpful to, 303, 393, 403, 431, 425–459.
- Society for the Study of Motor Air Ships, 138.
- Sommer, Roger, 284, 293.
- Sopwith, Thomas, 314.
- Speed records, 310, 311.
- Spratt, G. A., 247.
- Squier, Major George Owen, 279, 459.
- St. Louis tornado, 412, 413.
- Stabilizing planes, 86.
- Stability and steadiness, artificial, 229–231.
- automatic, 218, 220, 229.
- three-axial, 229, 234.
- Statoscope, 76.
- Statue of Liberty Prize, 325.
- Stringfellow, 184, 185, 187.
- Surcouf, 115.
- Süring, Dr., 70.
- Tabuteau, Maurice, 311.
- Tasso, 3.
- Tatin, Victor, 189.
- Tellier monoplane, 312.
- Temperature, critical, 351.
- distribution of, 366–370.
- gradient, 367.
- vertical gradient, 367–369.
- Temperature of the air, 363 et seq.
- Teisserenc de Bort, 380–382.
- The New York Times, 313.
- Three-rudder principle, 229–232.
- Thunderstorms, genesis and propagation of, 423, 424.
- nature of, 422 et seq.
- Tidswell, Ella, 216.
- Tissandier, Gaston, 273, 283, 293.
- Tornadoes, bursting of, 419–420 et seq.
- destructive power of, 409, 410.
- dry, 420, 421.
- dynamics of, 406–409.
- genesis of, 405–406.
- hail and snow, 415–419.
- misty, 411 et seq.
- nature of, 404.
- sections of, 409–417.
- Tractional balance, 254.
- Trade-winds and antitrade, 380–383.
- Transatlantic voyages, 74, 75, 381, 383.
- Triplanes, 175.
- Types of flyers, 174.
- balloons, 122.
- United States Signal Corps, vi, 271, 272, 276–281.
- United States War Department, 138, 196, 271, 272, 275–281.
- United States Weather Bureau, vi.
- Vacuum balloon, 18, 24, 25, 443–445.
- Van der Born, 312.
- Varnish bubbles, 30.
- Vaulx, Count de la, 74, 127, 129.
- Veranzio, Fauste, 177.
- Ville de Nancy, the, 124, 125.
- Ville de Paris, the, 120–123.
- Vivinus, 129.
- Voisin, 259, 267, 313.
- Von Bezold, 424.
- Waterspouts, analysis of St. Louis, 412, 413.
- nature of, 411 et seq.
- Weiller prize, 314.
- Wellman, Walter, 25, 75, 383.
- Wenham, 185, 186, 245.
- Weyman, 314, 331.
- White Wing, the, 266.
- Wilkins, 10.
- Winans, Ross, 320.
- Wind gusts, distribution of, 425, 426.
- energy of, 435, 436.
- instrumental study of, 427–459.
- nature of, 425 et seq.
- soaring value of, 426, 427, 439.
- sustaining force of, 426.
- Winds, ascending trend of, 211.
- cause of periodic, 383.
- cyclonic, 394 et seq.
- diurnal, 392–393.
- dry whirl, 420, 421.
- fluctuations of, 427–439.
- general cause of, 363, 364.
- kinds of permanent, 380.
- kinds of periodic, 383.
- monsoon, 385, 391.
- nonperiodic, 394 et seq.
- nonvortical, 422 et seq.
- permanent and periodic, 376 et seq.
- prevailing westerlies, 380, 382, 383.
- trade-winds and antitrade, 380, 381.
- useful for voyages, 381, 383.
- in soaring, 303, 393, 403, 421, 425–439.
- Wise, John, 73, 74, 383, 415, 416.
- Wölfert, 99.
- World, the New York, 313, 316.
- Wright brothers, 245–251, 270–282, 309, 324, 326, 329, 338, 478.
- Wynmalen, Henri, 321.
- Zahm, 30, 97, 113, 221, 229–231, 239, 245, 334, 427–432, 443.
- Zanonia Macrocarpa, 180.
- Zeppelin, Count Ferdinand von, 102.
- Zeppelin Airship Construction Co., 158, 161.
- Zeppelin dirigibles, 145, 169.
- Zodiac balloons, 127, 128, 129.