It was in a house of that kind that Brownie Beaver lived. And he built it himself, because he said he would rather have a neat, new house than one of the big, old dwellings that had been built many years before, when his great-great-grandfather had helped throw the dam across the stream. The dam was there still. It was so old that trees were growing on it. And there was an odd thing about it: it was never finished. Though Brownie Beaver was a young chap, he worked on the dam sometimes, like all his neighbors. You see, the villagers kept making the dam wider. And since it was built of sticks and mud, the water sometimes washed bits of it away: so it had to be kept in repair. If Brownie Beaver and his friends had neglected their dam, they would have waked up some day and found that their pond was empty; and without any water to hide their doorways they would have been safe no longer. They would have had no place, either, to store their winter's food. For they were in the habit of cutting down trees and saving the bark and branches too, in order to have plenty to eat when cold weather came and the ice closed their pond. Some of their food they carried into their houses through a straight hall which was made for that very purpose. And some of the branches they fastened under water, near the dam. It was just like putting green things into a refrigerator, so they will keep. Now you see why Brownie Beaver would no more have thought of building his house on dry land than you would think of building one in a pond. Everybody likes his own way best. And it never once occurred to Brownie Beaver that his way was the least bit strange. Perhaps it was because his family had always lived in that fashion. II HOW TO FELL A TREE Brownie Beaver could do many things that other forest-people (except his own relations) were not able to do at all. For instance, cutting down a tree was something that nobody but one of the Beaver family would think of attempting. But as for Brownie Beaver--if he ever saw a tree that he wanted to cut down he set to work at once, without even going home to get any tools. And the reason for that was that he always had his tools with him. For strange as it may seem, he used his teeth to do all his wood-cutting. The first thing to be done when you set out to fell a tree with your teeth is to strip off the bark around the bottom of the trunk, so that a white band encircles it. At least, that was the way Brownie Beaver always began. And no doubt he knew what he was about. After he had removed the band of bark Brownie began to gnaw away chips of wood, where the white showed. And as he gnawed, he slowly sidled round and round the tree, until at last only the heart of the tree was left to keep the tree from toppling over.