| FIG. | PAGE |
| 1. Tangential flight | 16 |
| 2. Horizontal flight | 18 |
| 3. Lift and drift | 19 |
| 4. Normal air pressure | 20 |
| 5. Edge resistance | 20 |
| 6. Measuring lift and drift | 21 |
| 7. Equal lift and drift in flight | 25 |
| 8. Unequal lift and drift | 25 |
| 9. Wing movement in flight | 29 |
| 10. Evolution of humming-bird's wing | 30 |
| 11. A skipper in flight | 35 |
| 11a. Monoplane in flight | 52 |
| 12. Angles of flight | 53 |
| 13. Planes on non-changing body | 55 |
| 14. Descent with non-changing body | 56 |
| 15. Utilizing momentum | 57 |
| 16. Reversing motion | 58 |
| 17. Showing changing angle of body | 59 |
| 18. Showing non-changing angle of frame | 60 |
| 19. Normal flight, with propeller pulling | 61 |
| 20. Action when propeller ceases to pull | 62 |
| 21. Synchronously-moving planes | 63 |
| 22. Stream lines along a plane | 75 |
| 23. Air lines on the upper side of a plane | 78 |
| 24. Air lines below a concaved plane | 79 |
| 25. Air lines above a convex plane | 80 |
| 26. Changing centers of pressures | 81 |
| 27. Changing centers of pressures | 81 |
| 28. Bird-wing structures | 81 |
| 29. Bird-wing structures | 81 |
| FIG. | PAGE |
| 30. One of the monstrosities | 83 |
| 31. Flying upside down | 89 |
| 32. Chart showing range of uses | 92 |
| 33. Ribs of dragon kite | 96 |
| 34. The Malay kite | 96 |
| 35. Dihedral angle | 96 |
| 36. Common kite | 97 |
| 37. Bow kite | 98 |
| 38. Sexagonal kite | 98 |
| 39. Hargreave kite | 99 |
| 40. Voison biplane | 100 |
| 41. Spear kite | 101 |
| 42. Cellular kite | 101 |
| 43. Tetrahedral kite | 102 |
| 44. Deltoid formation | 103 |
| 45. Deltoid formation | 103 |
| 46. The Dunne bi-plane | 104 |
| 47. Rotable umbrella kite | 105 |
| 48. Action of wind forces on kite | 107 |
| 49. Farman ailerons | 115 |
| 49a. Rule for spacing planes | 119 |
| 50. Frame of control planes | 119 |
| 51. Side elevation of frame | 120 |
| 52. Frame with running gear | 120 |
| 53. Plan view | 122 |
| 54. Alighting | 123 |
| 55. Common fly. Outstretched wings | 125 |
| 56. Common fly. Folded wings | 126 |
| 57. Relative size of wing and body | 126 |
| 58. Plan of monoplane | 128 |
| 59. Side elevation, monoplane | 129 |
| 60. Horizontal and vertical pull | 137 |
| 61. Speed indicator | 144 |
| 62. Air pressure indicator | 145 |
| 63. The gyroscope | 151 |
| 64. Application of the gyroscope | 152 |
| 65. Action of the gyroscope | 153 |
| 66. Angle indicator | 155 |
| FIG. | PAGE |
| 67. Simple pendulum stabilizer | 156 |
| 68. Pendulum stabilizers | 157 |
| 69. Steering and control wheel | 158 |
| 70. Automatic stabilizing wings | 159 |
| 71. Action of stabilizing wings | 159 |
| 72. Into the wind at an angle | 160 |
| 73. Turning a circle | 161 |
| 74. Aneroid barometer | 162 |
| 75. Hydroplane floats | 165 |
| 76. Describing the pitch line | 188 |
| 77. Laying out the pitch | 189 |
| 78. A laminated blank | 191 |
| 79. Arranging the strips | 192 |
| 80. End view of blank | 192 |
| 81. Marking the side | 193 |
| 82. Outlining | 193 |
| 83. Cut from a 4" x 6" single blank | 194 |
| 84. A suggested form | 195 |
| 85. Deltoid glider | 199 |
| 86. The Deltoid racer | 199 |
| 87. "A" shaped racing glider | 201 |
| 88. Making the propeller | 203 |
| 89. Shape and size | 205 |
| 90. Course of a bomb | 210 |
| 91. Determining altitude and speed | 211 |
