In addition to any of these methods of tightening the joints, to make sure that the ends of the joints close tight, pinch-dogs, Fig. 178, [p. 102], may be driven into the end grain, and corrugated fasteners, Fig. 228, [p. 125], also driven into the ends, make the joint quite secure.
No. 53. A doweled miter is one in which one or more dowels are inserted and glued into holes bored into the beveled edges. It may be used instead of nails, as in large picture frames.
Fig. 268-53 Doweled miter
No. 54. A spline or tongue miter is one which has a spline or tongue inserted at right angles to the joint. Since it furnishes more gluing surface, it is stronger than a plain miter.
Fig. 268-54 Spline miter