"You can help us lift the engine," said Dick. "That is rather heavy."

The boys and the farmer worked until five o'clock in the afternoon over the biplane, knocking off a half hour for dinner. For that meal they had same fried chicken and fresh vegetables, and an apple pie made by Minnie which Tom declared was "a dream."

"We'll come and board with you," said Dick, to the girl. "This sort of food goes away ahead of the college stuff; eh, boys?"

"Indeed it does!" cried Tom.

"Can't be beaten," put in Sam. And these compliments pleased the farmer's daughter very much.

Gasoline was at hand and also oil, and soon the youths had the engine of the biplane in working order. But it was not started until the Dartaway had been rolled off to the middle of a big field.

"I don't want to scare your horses and cattle," explained Dick, to the farmer. "When the engine starts they'll think Fourth of July has arrived."

Soon all was in readiness, and with a final inspection of the biplane, Dick took his seat in the machine and called to his brothers to work the propellers. Bang! bang! bang! went the cylinders, and around went the big blades, faster and faster, until only a blur could be seen. Then over the field shot the Dartaway and up in the air.

"Oh, my, just to look at that!" gasped Minnie. "Just like a big bird!"

"Well, I'll be switched!" cried Mr. Sanderson. "An airship, sure as you are born! I didn't think I'd live to see one! My! my! just to see that thing a-sailin' through the air!"