the Falcon was having anything but an easy time of it.
It was the work of but an instant however, when Tom reached the engine room, to jerk the accelerator lever toward him, and the motor responded at once. With a low, humming whine the wheels and gears redoubled their speed, and the great propellers beat the air with fiercer strokes.
At the same time Tom heard the hiss of the gas as it rushed into the envelope from the generating machine, as Ned opened the release valve.
"Now we ought to go up," the young inventor murmured, as he anxiously watched the barograph, and noted the position of the swinging pendulum which told of the roll and dip of the air craft.
For a moment she hung in the balance, neither the increased speed of the propellers, nor the force of the gas having any seeming effect. Mr. Damon and the Russian, clinging to the rudder levers, to avoid being dashed against the sides of the pilot house, held them as far back as they could, to gain the full power of the elevation planes. But even this seemed to do no good.
The power of the gale was such, that, even with the motor and gas machine working to their limit, the Falcon only held her own. She swept along, barely missing the crests of the giant waves
