He roused himself suddenly, and stood up.

"I thought, perhaps, you had a headache."

"No, Ivy. But this is not climbing the hill of science, is it?"

"Not so much as it is climbing the piazza."

"Suppose we take a vacation to-day, and investigate the state of the atmosphere?"

"Yes, Sir, I am ready."

Ivy did not fully understand the nature of his proposition; but if he had proposed to "put a girdle round the earth in forty minutes," she would have said and acted, "Yes, Sir, I am ready," just the same.

He took up the basket of grapes which he had gathered, and led the way through the window, down-stairs. Ivy waited for him at the hall-door, while he carried the grapes to Mrs. Simm; then he joined her again and proposed to walk through the woods a little while, before Ivy went home.

"You must know, my docile pupil, that I am going to the city to-morrow, on business, to be gone a week or two. So, as you must perforce take a vacation then, why, we may as well begin to vacate today, and enjoy it."

"I am sorry you are going away."