"It is," Bert said. "But you see you can't sail an ice-boat if you haven't any wind, and I want you to have a ride before the wind dies away, as it might. So come on, get on board!"
"I want to steer!" cried Freddie.
"No, you must not," said Nan.
"Yes, I must. I know how to steer a motor boat, and I can steer an ice-boat, I guess," and Freddie was very sure about it.
"After a while, maybe," agreed Bert "But an ice-boat is different to steer from a motor boat. I'll show you how, though."
Mr. and Mrs. Bobbsey got on the little platform which Bert had built as a sort of open cabin. It had old carpets and rugs on it, and there were blankets and robes to keep the passengers warm. After some failures Bert and Tommy had finally managed to finish the ice-boat. It was not as easy to build as they had expected, but Mr. Bobbsey's carpenter had helped them.
The boat had been tried out on the ice, and had sailed well. Mr. Bobbsey had Mr. Watson look at it, and that gentleman had said it was safe to ride in. Then Bert had finally gotten
