"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 his father and mother to promise to take a trip in the boat, bringing Nan, Flossie and Freddie with them. Mr. Bobbsey had, before this, been given a ride with Bert and Tommy, so he knew the two boys could manage the boat fairly well. Tommy and Bert had had several rides by themselves. Now they had company.

"Are you all ready?" asked Bert, after he had seen his father and mother, his sisters and brother, get on board the Bird.

"All ready," answered Mr. Bobbsey. "Don't go too fast at first, and take your mother's breath away."

"I won't!" promised Bert. "Are those two little ones covered up all right?" he asked, nodding toward Flossie and Freddie.

"Yep! We're as warm as—as popcorn!" cried Flossie.

"With butter on!" added Freddie.

"Well, you certainly ought to be good and warm," laughed Mrs. Bobbsey, as she tucked the robes closer around the two smaller twins.

"All aboard!" called Bert, and then, moving slowly at first, the ice-boat glided away from the lumber wharf, skimming over the lake with the entire Bobbsey family, not counting, of course, fat Dinah and her husband, who stayed at home. Nor was Snoop, the black cat, along. Snap, the dog, ran a little way, but when he found the ice-boat was going too fast for him, and when he noticed that he was slipping too much, he gave a sort of good-bye howl and went slowly back to shore.