“The receipt of this is already acknowledged in the contract,” he reminded Thompson, and the latter nodded.

The visitors said good-night and took their leave, Rad opening the door for them with a profound bow that put such a crick in his back that he had hard work straightening up again.

“Well, Ned,” said Tom, “I have to hand it to you for the way you carried your points. You’re all wool and a yard wide as a business man.”

“You surely are, Ned,” agreed Tom’s father warmly. “You and Tom make a good team, he for the inventive and you for the financial end of the business. But now, as I’m pretty tired, I guess I’ll go over to the house and take Rad along.”

“All right, Dad,” said Tom. “I’ll be over before long. Hope you’ll get a good night’s sleep.”

“I shall if that tooth will let me,” and Mr. Swift smiled faintly. He had been having a great deal of trouble with his teeth.

“Better see a dentist in the morning and have it out if it doesn’t behave.”

“I guess that is what I’ll have to do, Tom.”

“Tom, the next thing for you to invent will be a painless tooth-pulling machine,” remarked Ned.

“Sounds fine,” returned Mr. Swift, with a smile, and then passed out.