"Over in Putney!" echoed Fred Babbitt. "What do they know about duck?"

"Go ahead with your ducks," responded Charley. "That one might about as well have been nailed on. Why, it's flat-bottomed, and the nest is a'most flat on top, and the duck-stones you've picked out ain't fit for cobblestones."

"Missed him!" shouted Bill Eaton, as Mort Senter's duck-stone struck the edge of the nest, and glanced away a few feet on the ground. In an instant more Mort was standing by his duck-stone, with his hand out toward it, waiting his chance to seize it and "run home" to the pitching line. It was Bill Eaton's duck on the nest, and Fred Babbitt was watching his own stone, almost under Bill's arm. Jake Potter was already on a clean run home, without being "touched," having made his escape while Bill was watching Mort Senter's throw.

PLAYING DUCK.—Drawn by S. G. McCutcheon.

"You see," said Joe Biddle, in pity for Sid's ignorance, "Bill Eaton can't get his duck away and have another chance to pitch till it's knocked off; and he can't then unless he grabs it, puts it back on the nest, and touches another fellow that's made a miss before that fellow can get away home. If one of 'em tries to take his duck-stone, though, any time, and Bill can touch him before he gets in with it, then that fellow has to be 'duck-tender' in Bill's place. Don't you see? Jake Potter's just got away. Now he can throw again. It wouldn't take you long to learn."

"Guess not," said Sid, confidently.

"Well, if you're going to stay here this summer, we'll teach you lots of things. You'll know a good deal when you go home."

Sid was aching just then for a chance to speak of some other things he felt sure the Rockville boys did not know, but Charley McGraw once more got in ahead of him.

"Stay here! He'd better come over to Putney. We'd show him how to play duck. We wouldn't teach him to use such a duck-stone as that, either."