ing their way up the lake on the ice. After going a mile or two on the ice-boat the wind died down so that the craft did not go very fast.
"Come on, Dorothy," called Nan, "let's skate for a ways. And if you get too far ahead of us, please wait, Bert," she added, and her brother promised that he and Harry would.
For a time Dorothy and Nan enjoyed the skating very much, and it was a welcome change from sitting still on the ice-boat. Then the wind sprang up again, and Harry and Bert got so far ahead that the two girls thought they should never be able to skate to them.
"Oh, I wish they'd wait," said Dorothy. "I'm getting tired."
"I'll wave to them—maybe they'll see my handkerchief," said Nan.'
Bert and Harry did see the girls, and, guessing what the white signal meant, they lowered the sail of the ice-boat and waited for the two to come up. And the girls were glad enough now to sit amid the comfortable robes and blankets.
