Jack Benson raised the lead two or three feet, then let it down again,
playing it up and down very much as a cod fisherman uses his line and
hook.

"I'm hitting something, and it is hardly a rock, either," declared young
Benson. "Pull around about three points to starboard, Hal, then steal
barely forward."

Again Benson played see-saw with his sounding-line over the boat's
gunwale.

"If my lead isn't hitting the 'Farnum,'" declared the young skipper,
positively, "then it's the 'Farnum's' ghost. Hold steady, now, Hal."

Immediately afterward, Benson caused the lead fairly to dance a jig on
whatever it touched at bottom.

"What's the good of that, anyway?" demanded Jacob Farnum.

"You don't think I'm doing this just for fun, do you, sir?" asked
Captain Jack, with a smile.

"No; I know you generally have an object when you do anything unusual,"
responded the shipbuilder, good-humoredly.

"You know, of course, sir, that noises sound with a good deal of
exaggeration when you hear them under water?"

"Yes; of course."