"Hurrah! It's settled!" cried Tom, who went headlong into everything. "We'll get a machine to-morrow! How much do they cost?"

"I don't know—several thousand dollars, I fancy," answered his elder brother.

"Boiled umbrellas, Dick! As much as that?"

"I think so."

"Why look at some of 'em," declared Sam. "Nothing but bamboo poles and a few wires, and canvas,—and the engine!"

"Yes, but the poles, wires and canvas have to be put together just right, Sam, and those engines are as powerful as they are light. And then don't forget the propellers, and the steering outfit, and the other things."

"Come on and ask one of the men about them," came from Tom; and a little later they had a long talk with an aviator named Captain Colby, who proved to be a relative to Larry Colby, one of their former chums at Putnam Hall. He had heard about the Rover boys and some of their doings, and willingly told them all they wanted to know.

The boys went home with their minds full of flying machines, and as the Rovers were all well-to-do, and as the three lads had in the past proved capable of taking care of themselves, it was not a very difficult matter for them to persuade their father to let them buy a biplane. Then, through Captain Colby, they learned where the flying machine could be obtained, and the very next day bought the affair and had it shipped to the farm, and also arranged with the aviator to visit them and give them a number of lessons.

"We've got three weeks before we have to go back to college," Tom had said. "If we are quick to learn we can have lots of fun in that time."

"Yes, and if we do learn, perhaps we can take the biplane to college with us and astonish some of the students and the faculty," Dick had added.