the points f f f f and g g g g lay off
this angle to the end of the piece. Carry these lines across the end
at right angles to the surface, h i, Fig. 250, and repeat the dovetail
angles on the other surface. Mark plainly the parts to be cut out (the
mortises), as on X in Fig. 250. Score with a knife point the inner
ends of the mortises, d to f, g to f, etc., and across the edge at d
and at e. With a dovetail-saw, Fig. 93, p. 66, cut on the mortise side
of each line down to the cross line, d-e, and also along the cross
line from d to f and e to g. Chisel out the mortises taking care to
keep the line d-e straight and square. The ends (not the sides) of the
mortises may be slightly undercut to insure a tight fit.

Fasten the other member, Y, upright in the vise so that the end to be
tenoned will be flush with the top of the bench, and with the working
face toward the bench. Place on it the working face of X, (the member
already dovetailed,) taking care that the inner ends of the mortises
are in line with the working face of Y, and that the edges of the two
members are in the same plane, as X on Y in Fig. 250. Scribe with a
knife point along the sides of the tails on the end of Y (f'-j' and
g'-h'). Remove Y from the vise and square down these lines to the
cross line l-m (j'-n and h'-o). Score with the knife point the inner
ends of the mortises of Y (n-o). Saw with a dovetail-saw on the
mortise sides of these lines, chisel out the mortises and fit the
parts together. When glued together, the joints should be dressed off.

Where there are several parts to be made alike, it is necessary to lay
out the dovetails on only one X member. This may be used as a templet
for laying out the others and they can then be sawn separately. Or all
the X members may be clamped carefully together, with one X already
laid out, rights and lefts in pairs, and edges and ends flush, the
depth mark gaged all around, and then all sawn at once.

The dovetail joint is also made by first laying out and cutting the
members having the pins, and then superposing this on the piece to be
dovetailed, and scribing around the pins.

_No. 49. A lap or half blind dovetail_, Fig. 267, is a dovetail joint
in which the tails on one member do not extend entirely thru the
thickness of the other member. It is used in joining the sides to the
fronts of drawers and other fittings where only one side is seen.

If the joint is to be used for a drawer front, the groove f