"Yes, it does drip a little," admitted the aviator. "I haven't tightened the washers on the tank. You mustn't mind a little thing like that. I often get soaked with oil and gasolene. I should have told you to put on an old suit."

"But look here!" cried Uncle Ezra, in accents of dismay. "I didn't put on an old suit! This is my second best. I paid thirteen dollars for it, and I've bad it four years. It would have been good for two more if your old oil hadn't leaked on it. Now it's spoiled!"

"You can have it cleaned, perhaps," suggested the lieutenant as he sent the biplane about in a graceful curve, before getting ready for a descent.

"Yes, and maybe have to pay a tailor sixty-five cents! Not much!" cried Uncle Ezra. "I'll clean it myself, with some of the gasolene. I ain't going to waste money that way. I ought to charge you for it."

"Well, I'll give you the gasolene to clean it," said the aviator, with another unseen wink.

"Humph!" ejaculated Uncle Ezra with a grunt, as he tried to hold on with one hand, and scrub off some of the oil spots with his handkerchief.

"Well, I guess we'll go down now," announced Larson, after making several sharp ascents and descents to test the efficiency of the vertical rudder.

"Why, we're quite a way from the farm!" exclaimed Mr. Larabee, looking down. "I didn't think we'd come so far."

"Well, I'll show you how quickly we can get back there!" boasted Larson. "I'll have you at your place in a hurry!"

He turned more power into the motor, and with a rush and a roar, the biplane shot forward.