“Oh, very,” repeated Harry.

“Most,” supplemented Billy.

Mr. Chester laughed.

“I never saw such boys,” he said, “but even supposing you had the automobile—I say supposing you had it, could you carry enough supplies in it for the aeroplane?”

“I am sure we could,” Frank asserted. “You see, automobiles are in such general use nowadays that it would only be in the desolate parts of the western states that we should have to carry a large supply of gasolene. Almost every village nowadays has it in stock.”

“You seem to have the whole thing thought out,” laughed Mr. Chester.

“It will be the trip of a lifetime,” shouted Harry.

“Well, I shall have to consult with your mother,” was Mr. Chester’s dictum.

Mrs. Chester objected very much at first to her sons’ plan.

“You are always going off on dangerous trips. I do wish you’d spend a little time at home,” she said.