Balloon with Ballonets 67 Construction of the Zeppelin Balloon 68 The Equilibrator 69 Henry Giffard's Dirigible 71 Dirigible of Dupuy de Lome 72 Tissandier Brothers' Dirigible Balloon 73 The "_Baldwin_" 74 The "_Zeppelin_" on Lake Constance 75 The "_Patrie_" 77 Manufacturing the Envelope of a Balloon 79 Andrée's Balloon, "_L'Oernen_" 80 Wreck of the "_Zeppelin_" 82 Car of the "_Zeppelin_" 84 Stern View of the "_Zeppelin_" 86 The "_Clément-Bayard_" 87 The "_Ville de Paris_" 88 Car of the "_Liberté_" 89 The "_Zodiac No. 2_" 92 United States Signal Corps Balloon Plant at Fort Omaha 93 The "_Caroline_" 94 The Ascent at Versailles, 1783 95 Proposed Dirigible 96 The "_République_" 97 The First Flight for the Gordon-Bennett Cup 99 The Gnome Motor 102 Screw Propeller 103 One of the Motors of the "_Zeppelin_" 104 The Four-Cycle Engine 105 Action of Two-Cycle Engine 106 Motor and Propeller 108 Two-Cylinder Opposed Engine 110 Four-Cylinder Vertical Engine 110 Head End Shapes 113 The Santos-Dumont Dirigible No. 2 115 In the Bay of Monaco: Santos-Dumont 117 Wright Biplane on Starting Rail 121 Launching System for Wright Aeroplane 122 The Nieuport Monoplane 124 A Biplane 125 Ely at Los Angeles 126 Trajectory During Descent 127 Descending 128 The Witteman Glider 130 French Monoplane 132 A Problem in Steering 133 Lejeune Biplane 134 Tellier Monoplane 135 A Monoplane 137