and gasoline tanks were filled, and gave a preliminary twirl to
the propeller.

"Now does yo' t'ink it am puffickly safe, Massa Tom?" and the
colored man looked nervously at the machine.

"Of course, Rad. Otherwise I wouldn't invite you. But I won't take
you far. I just want you to get used to it, and, once you have made
a flight, you'll want to make another."

"I don't nohow believe I will, Massa Tom, but as long as you have
axed me, an' as yo' say some of dem proud, stuck-up darkies in
Shopton will be tooken down a peg or two when de sees me, vhy, I
will go wif yo', Massa Tom."

"I thought you would. Now take your place in the little seat next to
where I'm going to sit. I'll start the engine and jump in. Now sit
perfectly still, and, whatever you do, don't jump out. The ground's
pretty hard this morning. There was a frost last night."

"I knows dere was, Massa Tom. Nope, I won't jump. I--I--Oh, golly,
Massa Tom! I guess I don't want to go--let me out!"

Eradicate, his heart growing fainter as the time of starting drew
nearer, made as if he would leave the monoplane, in which he had
taken his seat.

"Sit still!" yelled Tom. At that instant he started the propeller.
The motor roared like a salvo of guns, and streaks of fire could be
seen shooting from one cylinder to the other, until there was a
perfect blast of explosions.

The speed of the propeller increased as the motor warmed up. Tom ran
to his seat and opened the gasoline throttle still more, advancing
the spark slightly. The roar increased. The lad darted a look at
Eradicate. The colored man's face was like chalk, and he was
gripping the upright braces at his side as though his salvation
depended on them.

"Steady now" spoke Tom, yelling to be heard above the racket. "Here
we go."

The Butterfly was moving slowly across the level stretch of ground
which Tom used for starting his airships. The propeller was now a
blur of light. The explosions of the motor became a steady roar, the
noise from one cylinder being merged into the blast from the others
so rapidly that it was a continuous racket.

With a whizz the monoplane shot across the ground. Then, with a
quick motion, Tom tilted the lifting planes, and, as gracefully as a
bird, the little machine mounted upward on a slant until, coming to
a level about two hundred feet above the earth, Tom sent it straight
ahead over the roof of his house.

"How's this, Rad?" he cried. "Isn't it great?"

"It--it