others to pass many a significant glance back and forth.
It chanced that some question arose, bringing out quite a warm discussion concerning a certain appliance which Harry was trying out on his battleplane, and of which a friend was the inventor.
"I've tested it twice now, Tom, and no matter what you say I believe it will do the business," Harry stoutly affirmed.
"That may be," Tom answered him. "Mind I'm not stubborn enough to condemn a thing I don't quite understand; but I'd want to be shown before I owned up beaten in the argument. Somehow, it doesn't seem possible to me that it can work."
"That's what they all told Columbus before he started on his trip into that unknown western sea," jeered Harry. "Poor old Fulton, too, was laughed at when he said he could make a boat go through the water without sails or oars. And what of Morse sending telegrams hundreds of miles by using a wire and a battery?"
"Oh, I know that's so," retorted Tom, unwilling to back down. "But I refuse to believe this will work automatically without ever a hitch. An air pilot's life hangs in the balance, and if it fails to make connections it's good-night for him."
"I warrant I can convince you inside of five minutes after you've examined the contrivance!"
