162 



INDEX— continued. 



Flight (Aero Weekly), 14, 16, 25 

 Fowl, Jungle, 73 

 Friction, 14 



Gannet (see PL xiv), 65, 76, 85, 



94, 121, 133 

 Gilson, Mr. R. C, 147 

 Glaisher, Mr., 112 

 Gliders [see Aeroplanes), 25, 26, 



29, 153 

 Gliding, Birds, 1-22, 96, 97 

 Gnat, 19 



Godwit, Eastern, 111 

 Goose, 88 



Gravity, Centre of, 23, 24 

 Grouse, 73, 98, 100 

 Guillemot, 68 

 Gulls, 47, 60 (PI. ix.), 77 



Play of, 128 



Soaring of, 145 



Progression of, without 



Wing-strokes, 130-132, 139- 



141 (PI. xvi) 



Hawks, 33, 74, 98 

 Heart, 156 

 Helmholtz, 56 

 Heron, 31, 32, 50, 117 

 Hoatzin, 68 

 Hoopoe, 92 

 Hornbill, 78 

 Humerus, 71 

 Hutton, Captain, 110 



Jay, 91, 93 (PI. xv) 



Kestrel, 4, 41, 146 

 Kite-flying, 9 

 Kites Soaring, 146 



Lancaster, C, 104 

 Langley, Prof., 12, 13, 125 

 Lapwing (PI. xiv), 32, 64, 66, 98 

 Legal and Reichel, 24, 32 

 Legs, Use of, in Balancing, 31, 

 32, 60 



Structure of, 90 



Lift and Drift, 1-15 

 Ligament, Elastic, 82 (PI. xi) 

 Lilienthal, 16 



Lizard, 81 



Lynes, Commander, 104, 126 



Marey, Prof., 4, 5, 19, 24, 40. 43, 



50, 144 

 Marriott, Mr. W., 113 

 Martin, House-, 35 

 Maxim, Sir H., 12, 145 

 Membranes, Wing, 85 

 Metacarpals, 80 

 Migration, 109-117, 160 

 Moor-hen, 75 

 Moulting, 88, 89, 159 

 Muscle, Quality of, 46, 55, 72-75, 



81 

 Muscles 45, 55, 70-72 

 Weight of, 23 



Newton, Sir I., 3, 12 

 Nuthatch, 65 



Ouzel, Water-, 100 

 Owl, 102 



Pace, 103-117 

 Parallelogram of Forces, 7 

 Payne-Gallwey, Sir R., 104 

 Peal, Mr. S. E., 142, 151 

 Pettigrew, Prof., 119 

 Pheasant, 53, 92 (PI. xiii.) 

 Pigeon (see Pis. ii, iii, iv, v, vi, 

 viii, ix, x), 19, 32, 46, 64, 

 97 103 



Homing, 105, 106, 117 



Pilcher, Mr., 29 



Plover, American Golden, 109 



Pressure, Centre of, 34 



Pterodactyle, 49 



Puffin, 48 



Pygostyle, 33 



Racehorse, The, 75 



Radius, 80, 82 



Rails, 89 



Raven, 146 



Reed-Warbler, Clamorous, 92 



(PI. xv) 

 Robertson, Mr. J. B., 75 

 Rook, 129 



