320 INDEX VOL. 27 



PAGE 



Washington Evening Star, report of 274 



Watches, Stop, for timing flight 109 



Water, cooling, for engine 235, 236, 241, 247, 248, 252 



Water-engine, hot 24, 25 



Water-jacket 220, 234, 236 



Water-proof varnish 263, 264 



Water-tank 252 



Watkins, J. E 39 



Weight (see also data sheets). 



Hying, of aerodrome 15, 38, 62, 63, 76, 77. 81, 89, 90, 91, 101, 109, 116, 148, 206, 247, 250, 



256. 277 



of aerodrome 31. 3S, 40, 53, 62. 63, 1 1 6, 126, 130, 206, 256 



covering for wings 194 



parts of aerodrome 31. 63, 116, 190, 250 



engine 116, 117. L26, 130, L56, 209, 247, 250, 277 



per horse-power 31, 126 



relation to area and power 43. 44, 64, 81, 89, 90, 96 



total, with aviator 256 



Wellner, Georg 44, 47 



Wheel, By 242, 243, 247, 252 



steering 214-216, 265, 266, 272 



Whirling-table 1, 5, C, 7, 11, 13, 31, 42, 165-166, 178, 189-194 



Widewater, Va.. experimental grounds ( 1903 ) 255, 256, 277, 280 



Wind, artificial 42, 61 



difficulties of launching in 94, 99, 265, 271, 272, 276, 282 



experiments in 42, 61, 99, 257, 271 



internal work of the 6, 42 



open 42, 99, 257, 271. 272 



Wind-shield for burners 60, 67, 95, 115 



Wind-vane rudder 136 



Wing-clamps 82, 89, 145, 183 



Wings, adjustment of. for center of gravity 16 



angle of 45, 61, 82, 83, 89, 91, 97, 98, 100, 101, 103 



arrangement of 45-47, 77, 86, 89, 194, 255 



bagging of 84, 86, luO, 195, 203 



bird, construction of 7, 188, 200, 201 



boxes for 263. 264 



construction of 7, 70, 80, 81, 87, 90, 91, 99, 105, 119, 121, 138, 188-206 



covering of, cloth 195, 199. 204, 205 



goldbeater's skin 77 



paper S6 



silk 54, 63, 81, 86-SS, 90, 148, 194, 195, 205 



weight of 194 



curvature of 18, 14, 46, 47, 86, 87, 90, 99. 112 



distortion of 82, S3, 84, 91, 98, L05 



double tier 13, 14, 17, 138, 193, 231 



efficiency of 46, 87, 89, 91, 144, 192, 193 



flexure of (sec distortion of). 



pocketing of 84, 86, 100, 195, 203 



quills ami spruce ribs compared 200, 201 



ribs of 37, SO, 81, S6, 89, 1S8, 194-206 



single tier 17, 112. 146. 147-151. 153, 192, 193, 231 



superposed l::. 11, IT. 138, 153, 193, 231 



surface of 9, 69, 81, 99 



tandem efficiency of 46, 87 



two sets of 13, 77, 106, 138. 231 



weight of 190-196 



Wire guying 81, 84-91, 99, 164-173, 189, 191, 195, 196, 199, 264, 266 



resistance 165-167 



spokes 243 



Wooden guy sticks 63, 81. 85 



ribs 37, 80. 81, 86, 89, 188, 194-206, 263, 264 



Wrecking of large machine 126, 184, 266-281 



Z 



Zinc, energy developed from 27, 241 



Zoological I 'ark cameras 260, 261, 273 



