"Because that isn't a good turn," Pee-wee argued, anxious that Mary should not get a mistaken notion of this important phase of scouting. "A good turn is when you do something that helps somebody else. If you do it because you get a lot of fun out of it yourself, then it isn't a good turn at all. Of course, Roy knows that; he's only jollying when he calls it a good turn. You have to be careful with Roy, he's a terrible jollier--and Mr. Ellsworth's pretty near as bad. Oh, cracky, but I'd like to go with them--that's one sure thing. You think it's no fun being a girl and I'll admit _I_ wouldn't want to be one--I got to admit that; but it's pretty near as bad to be small. If you're small they jolly you. And if I asked them to let me go they'd only laugh. Gee, I don't mind being jollied, but I _would_ like to go. That's one thing you ought to be thankful for--you're not small. Of course, maybe girls can't do so many things as boys--I mean scouting-like--but--oh, crinkums," he broke off in an ecstasy of joyous reflection. "Oh, crinkums, that'll be some trip, _believe me_." Mary Temple looked at the diminutive figure in khaki trousers which sat before her on the coping. It was one of the good things about Pee-wee Harris that he never dreamed how much people liked him. "I don't know about that," said Mary. "I mean about a girl not being able to do things--scouting things. Mightn't a girl do a good turn?" "Oh, sure," Pee-wee conceded. "But I suppose if it gave her very much pleasure it wouldn't be a good turn." "Oh, yes, it might," admitted Pee-wee, anxious to explain the science of good turns. "This is the way it is. If you do a good turn it's sure to make you feel good--that you did it--see? But if you do it just for your own pleasure, then it's not a good turn. But Roy puts over a lot of nonsense about good turns. He does it just to make me mad--because I've made a sort of study of them--like." Mary laughed in spite of herself. "He says it was a good thing when Tom threw a barrel stave in the Chinese laundry because it led to his being a scout. But that isn't logic. Do you know what logic is?" Mary thought she had a notion of what it was. "A thing that's bad can't be good, can it?" Pee-wee persisted. "Suppose you should hit me with a brick----" "I wouldn't think of doing such a thing!" "But suppose you did. And suppose the scouts came along and gave me first aid and after that I became a scout. Could you say you did me a good turn by hitting me with a brick because that way I got to be a scout? Roy--you got to be careful with him--you can't always tell when he's jollying." Mary looked at him intently for a few seconds. "Well, then," said she, "since you've made a study of good turns tell me this. If Roy and Tom were to ask you to go with them on their long hike, would that be a good turn?" "Sure it would, because it would have a sacrifice in it, don't you see?" "How?"