"Harry spoke about the copper box this morning. Have you opened it yet?" asked George.

"Oh, no! I wouldn't think of doing it unless you were present. The Professor and I have had several talks about it, but we have all been so busy that the matter has been deferred from time to time. I hope we shall be able to get at it to-night."

While thus engaged in conversation the Professor appeared, smiling and happy. The boys greeted him affectionately, as was their custom always.

"Do you want to make a visit with me?" he asked.

"Yes; where?" asked George.

"We will go out on B Street first," he answered.

Together they passed the large school house, and crossed the open square, and entered the most beautiful of all the streets, the one laid out with rows of trees along the curbs, and flower beds along the middle portion of the driveway.

"Can you guess where we are going?" asked the Professor.

"No."

"Do you see the newly-painted house to the right?"