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 CHAPTER XI

THE CRUISE OF THE "ICE BIRD"

building of the ice boat by Bert and Charley Mason interested Nan almost as much as it did the boys, and nearly every afternoon she went down to the lumber yard to see how the work was getting along.

Mr. Bobbsey had given Bert just the right kind of lumber, and had a man at the saw-mill saw the sticks and boards to a proper size. He also gave his son some ropes and a pair of old iron runners from a discarded sleigh, so that all Charley had to provide was the bed-sheet already mentioned, for a sail.

The two boys worked with a will, and by Thursday evening had the ice boat completed. They christened the craft the Ice Bird, and Bert insisted upon it that his father come and see her.

"You have certainly done very well," said