"Boys," said Harry, presently, "it's getting awfully hot."
"That's because we're sailing right before the wind," said Tom. "We are going just about as fast as the wind goes, and that's the reason why we don't feel it."
"Is this a lecture on wind, by Professor Thomas Schuyler?" asked Joe. "Because if it is, I'd rather hear it when it's cooler. Let's go over to the other side of the river, where we can get in the shade of the Palisades."
It was now about three o'clock, and the sun was very hot. The boat seemed to the boys to creep across the river, and the Palisades seemed to move away just as fast as they approached them. When they finally did come into the shadow of those huge rocks, they thought they had never known anything so delightful as the change from the scorching sunshine to the cool shade. Joe and his brother stretched themselves out, and put their blankets under their heads; presently they grew tired of talking, and in
