Swift.

It was Mary who suspected that Tom was not wholly satisfied--as
yet, at least--with the test of the Hercules 0001. She cried:

"Tom! is it all right?"

"Nothing is ever all right--that is, not perfect --in this old
world, I guess, Mary," returned the young inventor. "But I am not
discouraged. As Ned says, the old contraption 'do move.' How fast
she'll move is another thing."

"What time did you make?" asked Mr. Swift.

"Not above fifteen miles an hour."

"Whew!" whistled Ned dolefully. "That is a long way from--"

Tom made an instant motion and Ned's careless lips were sealed.
It was not generally known among the men the speed which Tom
hoped to obtain with his new invention.

"It is a wide shoot at the target, that is true," Tom said,
soberly. "But remember I cannot test it for speed on this short
and almost circular track. Right at the start, however, I see
that something about the power-feed must be changed."

"What is that?" asked Mary, curiously.

"I have only had rigged here one trolley wire. There must be