NO. 3 INDEX 315 



I 

 Ignition (see electric batteries and circuits). 



India rubber for power (see also rubber) 21, I" 



Internal work of the wind 6, 12 



Inclination, angle of II. I'" 1 



Insulation Ml. 241, 257 



Iron, use of 63, 04, 114-117, 234 236, 2 10 



J 



Jacket, cork, aviator's 273 



water 220, 234, 236, 241. 217. 252 



" John Crow " (bird of Jamaica), study of 285 



K 

 Kite, model flown as 133, 154, 155 



L, 



Langley S P. . 3 4, 9, IS, 76-79, 93, 95, 102-108, 112, 123-126, 128, 131, L33 135 L56, L61, IT'.'. 



183, 184, 188, 211, 212, 219, 22:1. 230, 231, 257, 266-268, 270, 27 i, 27s. 280, 281. 



statement of ' 24 ' 28 ° 



letter of instructions from (see appendix), 

 study of " John Crow " bird (see appendix). 



aerodrome, War Department report on 277 - 278 - 279 



"Langley type" of aerodrome 77, 164, 208, 244 -, 278-281 



rudder " II' 07 



Lateral stability * 15-52, 97 



Launching, difficulties of ">. "• .2. 92. 4 96 99 



methods of 1 '" ' _'• ' , 



of large machine 265-267, 271-272. 276, 282 



Launching-apparatus 92-122, 134, L49, L56 163, L83, 185, 22,. 257, 261, 265-267 270 272 276 282 



overhead . 5 92-122, 133-135, 139, 142, L43, 11.,, L51, 152, 154, 1.. 6-163 



underneath 134. 135, 145-147, 151, 152, 154, 156-163, 183 



"eatoessof 265 ' 276 ' 282 



Launching-car '■'■'■■'■■ 158. 159. 183, 184, 255, 258, 262. 266-268, 271. 272. 274, 277 



Launching-speed (see also velocity ) 



Law of the cube ' 950 



LlHfSpXrs^^ 



Lilienthal, Otto, on efficiency of curves • ' j ■ y.,' ■ j ]|( ( i;| . 



Lineal velocity I - j 



Liquid air 45.52 



Longitudinal stability " ' ' V ' ^- 23*4" 239, 240 



Lubrication 



M 



... 266, 271. 272 



McDonald, Mr 123, 124 



McKinley, President William ..... 2" 



Macomb, Major M. M.. report of ' ',;.'.,,. , n 



Maltby, Mr., machinist •• •-■ ■ ■ — • '.;. ■ — ■ • — ■ ,.:/ {^m] '234-250, 255-282 



Man-carrying machine .•■;;;' [ 2S ,09 218-224 26 68.272,276,278 



Manly, C. M., assistant in charge oi experiments 1-. !-'■ -' --'• - ,, }i 



engine .-,1 



formula L 



John M., description of flight, by ........... L5 



Maxim's formula for horse-power ............... 2-4 



Mechanical flight 1 



theory of 4 



Dr. Bell on ...... 3-4 



Mr. Langley on ::. I 1 :.. 257 



ModelsTsee also "aerodrome model description and trials). ^ ^ ^ 



experiments with ,,.] 4 47 19 



small 



flight of (see trials). 



