proudly. "I neber knowed I was dat strong, but ob course I allers knowed I had some muscle. Golly, I must hab growed strong ober night! Now, Boomerang, yo' suah has got t' look out fo' yo' sef. No mo' ob yo' cuttin' up capers, or I'll jest lift you up, an' sot yo' down on yo' back, I suah will," and the negro feeling of his biceps walked over to where the mule stood, with its eyes closed.
"I guess you can cast off, Tom," called Mr. Sharp, as he entered the car, having seen that everything was all right. "We'll not go up very far at first, until Mr. Damon gets used to the thin air."
"Bless my soul, I believe I'm getting nervous," announced the eccentric man. "Bless my liver, but I hope nothing happens."
"Nothing will happen," Mr. Sharp assured him. "Just keep calm, when it feels as if the bottom was dropping out of everything and you'll soon get over it. Are you casting off those ropes, Tom? Is all clear?"
"All but the bow and stern lines."
"You attend to the bow line, and I'll go to the stern," and, going over to the gas generator, Mr. Sharp started it so as to force more vapor into the red aluminum container. This had the effect of rendering the airship more bouyant, and it
