The sheathing of the canoe is now first to be put in place. In the Malecite canoe the center pieces are the longest; they are tapered each way from their butts, which overlap about 2 inches amidships. The ends are made narrow enough to fit readily into the sharp transverse curve of the bottom and are long enough to pass under the heels of the stem pieces for an inch or two. The pieces of sheathing on each side of the center pieces are fitted in the same manner, and by the time two or three courses are in place they must be held in some manner at the ends. This is accomplished by means of the rough temporary ribs mentioned earlier. The sheathing is laid edge-to-edge, with the butts overlapping, and, if there are not enough long pieces to complete the bottom amidships, three or four lengths, with overlapped butts, will be used. As the sheathing progresses, more temporary ribs will have to be added. At the turn of the bilge, the sheathing will bend transversely as pressure is applied by the temporary ribs; the bark must be again wetted so that the angular bilge can be forced into a roughly rounded form. Particular care is required in finishing the sheathing below the gunwale to be certain that the top strake will be close up against the sewing of the bark at gunwales, but no particular attempt is made to make the edges of the sheathing in the topsides maintain edge-to-edge contact. The pressure of the temporary ribs, the heads of which are forced under the gunwales, and the elasticity of the bark due to treating it with boiling water are enough to rough-shape the canoe. Before the permanent ribs are placed the sheer is checked. If it appears to have straightened, the ends of the gunwales are supported by means of short posts placed under them, with the heels standing on the heels of the stem pieces or on the sheathing. Then some stakes, each having a projecting limb or root, are cut and are driven into the ground with the limb hooked over the gunwale to force it down.