Baker, Secretary of War, 201 Baldwin, Capt. Thomas S., 65, 106 Ball, Capt. Albert, 215, 219, 220 Balloon, dirigible: Astra, 73, 74 Astra-Torres, 73, 74 Blimps, 70 car suspension, 72, 73 demi-semi-rigid, 67 development of, 47-74 first, 51 first military, 52 first U. S. Army, 65 _La France_, 53 _Nulli Secundus_, 64, 65, 68 _Patrie_, 63 _Pax_, 58 _R-34_, 245 rigid and non-rigid, 66, 67 semi-rigid, 67 _S. M. S. Zeppelin I_, 66 Speiss, 74 trans-Atlantic flight, 245 use in World War, 68-74 _Ville de Paris_, 63 Zeppelins, 55, 56, 62, 65-68, 123 Zodiacs, 72 Balloon, passive: basket of, 19 captive, 36-44 car of, 19, 50 car lines of, 18 Channel flights, 12, 22-24 _Conqueror_, 27 drachen, 36-44 early ascents of, 3-27, 49 fabrics of (see _fabrics_) first, 3 first use of, in war, 25, 26 gases used for (see _gases_) grapnel of, 19 hoop of, 18 kite, 19, 36-44 neck of, 18 net of, 18 observation, 36-44 principles of, 14-19 ripping panel of, 18 races, 26 sausage, 19, 36-44 trail rope of, 18 use of, in Great War, 36-44 Ballonet, steering, 38 Ballooning: early, 3-27 in Boer War, 26 in Civil War, 25 in Great War, 36-44 Basket, balloon, 19 Battle planes, 128-149, 177-178, 192-196 Baumgarten, 54 Bell, Alexander Graham, 106 Bennett, Gordon, 26, 108 Bishop, Major William A., 205, 214 Blanchard, 12, 13, 29 Blériot, 104, 105, 108, 115 Blimps, 70-72 Bliss, General Tasker H., 201 Boelke, Captain, 194, 219 Boer War, balloons in, 26 Bombing planes, 128-149, 180-188, 197-204 Bonnel, Captain, 220 Breguet airplane, 114, 121, 122, 123, 181 Breguet-Michelin airplane, 179 Bristol Scout airplane, 175 Brown, Lieut. Arthur W., 245 Cacquot, Captain, 43 Caproni airplane, 183, 184, 185 Car, balloon, 19, 50, 72 Car lines, balloon, 18 Carlstrom, Victor, 174 Caudron airplane, 178, 182 Cavallo, 9 Cayley, Sir George, 80 Certificate, aviator's, 241 "Chamber of Horrors," 234 Channel flights: first airplane, 104 first balloon, 12, 22-24 Chanute, 86 Chapman, Victor, 216 Chaput, Lieut. Jean, 214 Charles, 9 Chartres, Duke de, 49 Chassis: first, 111 problem of, 165-167 Circuit of Britain prize, 120 Civil War, balloons in, 25 Clement-Bayard, 74 Clerget engine, 187 Cocking, 31 Conneau, Lieutenant, 120 _Conqueror_, 27 Curtiss airplane, 108, 173, 174, 187, 249 Curtiss Baby Speed Scout, 174 Curtiss, Glenn H., 65, 106-108, 119 Curtiss triplane, 173