"But chestnuts aren't poison!" cried Tess.

"They must be when they are green," declared the smaller girl, confidently, possessing just enough knowledge of her subject to make her positive. "Else the squirrels wouldn't have the stomach-ache. And you say they do."

"I said they might," denied Tess, hastily.

"Well, poison is a very dang'rous thing," went on Dot, pleased to air her knowledge. "It ought to be doctored at once and not allowed to run on—for that's very ser'ous indeed. And we mustn't treat poison rough; it's li'ble to run into blood poison."

"Oh!" gasped Tess, who had not had the benefits of "easy lessons in physiology" when she was in Dot's grade, that being a new study.

"You ought to keep poison," went on Dot, nodding her dark little head vigorously, "in a little room under lock and key in a little bottle and the cork in so it can't get out, and hide the key and have a skeleton on the bottle and not let nobody go there!" and Dot came out, breathless but triumphant, with this complete and efficacious arrangement.

The bigger girls had gathered a great heap of the brown nuts before the picnic dinner was served. Neale had done something beside shake down the nuts. He had stripped off great pieces of bark from the yellow birch trees and cut them into platters and plates on which the food could be served very nicely. Neale was so resourceful, indeed, that Ruth had to acknowledge that boys really were of some account, after all.

When they sat down, Turk-fashion, around the tablecloth which had been spread, the oldest Corner House girl sighed, however: "But mercy! he eats his share. Where do you suppose he puts it all, Aggie?"

"I wouldn't be unladylike enough to inquire," returned the roguish sister, with a toss of her head. "How dreadful you are, Ruth!"

It was a very pleasant picnic. The crisp air was exhilarating; the dry leaves rustled every time the wind breathed on them; and the tinkle of the spring made pleasant music. Squirrels chattered noisily; jays shrieked their alarm; the lazy caw of a crow was heard from a distance.