The method used by all woodsmen in splitting a log is the same as used by quarrymen in splitting bluestone, with this difference: the quarryman hunts for a natural seam in the stone and drives the wedge in the seam, while the lumberman makes a seam in the form of a crack in the log by a blow from his axe. In the crack he drives the wedge (Figs. 352 and 353). But if the log is a long one he must lengthen the crack or seam by driving other wedges or gluts (Fig. 353), or he may do it by using two or more axes (Fig. 352).
If he wishes to split the logs up into shakes, clapboards or splits, he first halves the log, that is, splitting it across from A to B (Fig. 356), and then quarters it by splitting from C to D, and so on until he has the splits of the required size.