It was a large fly struggling aimlessly, and as it was carried past a spot where the bank overhung and the grasses drooped into the water, a fish rose and took it, only leaving just the least circle of wavelet. Next came a dead dry twig, which a wood-pigeon had knocked off with his strong wings as he rose out of the willow-top where his nest was. The little piece of wood stayed a while in the hollow where the brook had worn away the bank, and under which was a deep hole; there the current lingered, then it moved quicker, till, reaching a place where the channel was narrower, it began to rush and rotate, and shot past a long green flag bent down, which ceaselessly fluttered in the swift water. Bevis took out his knife and began to cut a stick to make a toy boat, and then, throwing it down, wished he had a canoe to go floating along the stream and shooting over the bay; then he looked up the brook at the old pollard willow he once tried to chop down for that purpose. The old pollard was hollow, large enough for him to stand inside on the soft, crumbling “touchwood,” and it seemed quite dead, though there were green rods on the top, yet it was so hard he could not do much with it, and wearied his arm to no purpose. Besides, since he had grown bigger he had thought it over, and considered that even if he burnt the tree down with fire, as he had half a mind to do, having read that that was the manner of the savages in wild countries, still he would have to stop up both ends with board, and he was afraid that he could not make it water-tight. And it was only the same reason that stayed his hand from barking an oak or a beech to make a canoe of the bark, remembering that if he got the bark off in one piece the ends would be open and it would not float properly. He knew how to bark a tree quite well, having helped the woodmen when the oaks were thrown, and he could have carried the short ladder out and so cut it high enough up the trunk (while the tree stood). But the open ends puzzled him; nor could he understand nor get any one to explain to him how the wild men, if they used canoes like this, kept the water out at the end.