Figure 79.—Roof sheet, right edge finish:

a, the sinistral (9) is the last or marginal one while of the dextrals which project, the turning in commences with the lowest (1); b, as the lowest dextral (1) has to be turned in over the dextral (2) to maintain the check, the alternate dextrals (3 and 5) are raised and the turned in weft (1) placed in position; c, the raised dextrals (3 and 5) are placed over the acting sinistral (1) and the alternate (4) raised. The next dextral from below (2) is bent in over (3) and after dropping (4) over it, the two dextrals (3 and 4) are knotted together to prevent unravelling.