Overhand swimming, Side swimming, Swimming of the Little Penguin, The wing a lever of the third order, The elliptical, looped, and spiral tracks made in swimming, in the prone position, Swimming of the Turtle and Triton, Sub-aquatic flight or diving, The feet of the Swan as seen in the open and closed condition, Figure-of-8 vertical track made by the wing in flight, Do. horizontal track, 108 Partridge with small wings; Heron with large wings, 126 136, 137 The Green Plover with one wing flexed and the other extended, 138 Blur or impression produced on the eye by the rapidly oscillat ing wing of the insect, 139 Diagram in which the down and up strokes of the wing of the insect are analysed, 141 Diagrams illustrating the looped and waved tracks described by the wing of the insect, bat, and bird, Figures showing the positions assumed by the wing of the bird during the up and down strokes (side view), The positions assumed by the wing of the insect as it hastens to and fro and describes a figure-of-8 track, The figure-of-8 curves made by the wing of the bird in flexion and extension, The waved tracks described by the wing and body of the bird as they alternately rise and fall, The positions assumed by the wing of the bird during the down and up strokes (front view), Analysis of the movements of the wing, The kite-like action and waved movements of the wing, The Dragon Fly, PAGE 158 160, 161 166 171 172 The screws formed by the wing of the insect, bat, and bird, 174, 175, 176 The muscles, elastic ligaments, and feathers of the wing of the 228 231 237 239 241 243 250 253 256 260 Mr. Stringfellow's Flying Machine, Sir George Cayley's Flying Apparatus, Flying Machine designed by De la Landelle, Borelli's Artificial Bird, Diagrams illustrating the true and false action of the wing, The sculling action of the wing as seen in the bird, Diagrams illustrative of artificial wing movements, Diagram illustrating the currents produced by the movements do. with driving apparatus, |