Having got his bellows and fixed them to a post he drove into the ground, he took for his anvil a huge flint stone, and a smaller one for hammer; heated his old iron to a white heat, and hammered it with a world of trouble into straight lengths; and at last with a portion of it produced a long saw without teeth, but one side sharper than the other. This, by repeated experiments of heating and immersing in water, he at last annealed; and when he wanted to saw he blew his embers to a white heat (he kept the fire alive now night and day); heated his original saw red-hot, and soon sawed through the oleaginous woods of that island. If he wanted to cut down a tree in the jungle, he put the bellows and a pot of embers on his cart with other fuel, and came and lighted the fire under the tree and soon had it down. He made his pickax in half an hour, but with his eyes rather than his hands. He found a young tree growing on the rock, or at least on soil so shallow that the root was half above ground and at right angles to the stem. He got this tree up, shortened the stem, shaped the root, shod the point with some of his late old iron; and with this primitive tool, and a thick stake baked at the point, he opened the ground to receive twelve stout uprights, and he drove them with a tremendous mallet made upon what might be called the compendious or Hazelian method; it was a section of a hard tree with a thick shoot growing out of it, which shoot, being shortened, served for the handle. By these arts he at last saw a goal to his labors. Animal food, oil, pitch, ink, paper, were still wanting; but fish were abundant, and plantains and cocoanuts stored. Above all, Helen's hut was now weather-tight. Stout horizontal bars were let into the trees, and, being bound to the uprights, they mutually supported each other; smaller horizontal bars at intervals kept the prickly ramparts from being driven in by a sudden gust. The canvas walls were removed and the nails stored in a pigeon-hole, and a stout network substituted, to which huge plantain leaves were cunningly fastened with plantain thread. The roof was double: first, that extraordinary mass of spiked leaves which the four trees threw out, then several feet under that the huge piece of matting the pair had made. This was strengthened by double strips of canvas at the edges and in the center, and by single strips in other parts. A great many cords and strings made of that wonderful grass were sewn to the canvas-strengthened edges, and so it was fastened to the trees and fastened to the horizontal bars. When this work drew close to its completion, Hazel could not disguise his satisfaction.