内容简介：
"Will Snap pull us, do you think, Freddie?" asked little Flossie Bobbsey, as she anxiously looked at her small brother, who was fastening a big, shaggy dog to his sled by means of a home-made harness. "Do you think he'll give us a good ride?" "Sure he will, Flossie," answered Freddie with an air of wisdom. "I explained it all to him, and I've tried him a little bit. He pulled fine, and you won't be much heavier. I'll have the harness all fixed in a minute, and then we'll have a grand ride." "Do you think Snap will be strong enough to pull both of us?" asked the little girl. "Of course he will " exclaimed Freddie firmly. "He's as good as an Esquimo dog, and we saw some pictures of them pulling sleds bigger than ours."