s are cut diagonally across the grain as illustrated.

[Illustration: Fig. 105.--Cradle for Planing.]

Fig. 105 is a cradle for planing up loose tongues to the required width
(generally 7/8 in.). Two grooves are made in a piece of 1-1/4 in.
hardwood; one groove is used for planing the width way of the tongue and
the other for planing the edge way. These tongues can be cut to accurate
size on a circular saw bench if power and machinery are at hand.

APPLICATIONS OF THE JOINT.--Fig. 106 is a sketch of a portion of a
sideboard top, showing the plough groove ready worked out to receive the
tongue; the other half of the top is treated in a similar manner. It will
be noticed that the groove is not worked through the full length of the
board, but stopped about 1-1/4 in. from each end; this leaves a square
joint at each end of the top on which the moulding is worked. If the
groove be run through the board it looks very unsightly when the mould is
finished.

Fig. 107 is a shaped spandrel, such as is fixed in the recess of a
sideboard or cupboard or shop window fitment. It is of such a width that,
were it cut from a wide board, the shaped portion would be apt to break
off owing to the short grain at C. The shaping is therefore built up out
of three separate pieces, the grain running as indicated. The loose
tongue is represented by the dotted line and a section is shown of the
joint at the line A B. At the opposite corner the tongue is left blind,
_i.e._, not run through the edge. This is the method that should be used
when the shaping is above the level of the eye.

[Illustration: Fig. 106.--Part of Sideboard Top; grooved with ends left
blind. (The boards are shown upright.)]

[Illustration: Fig. 107.--Shaped Spandrel for Recess.]

Fig. 108 shows part of a carcase of a dressing table. The drawer runner A
is shown grooved across the end to receive a cross tongue; this cross
tongue engages a similar groove in the front bearer. This method of
fastening the runner to the bearer is in everyday use.

[Illustration: Fig. 108.--Part Carcase of Dressing Table.]

[Illustration: Fig. 109.--Framed Writing Table Top.]

Fig. 109 is a writing table top. The centre boards are first jointed and
glued up, after which the ends and sides are grooved ready to receive the
cross tongues. The hardwood margins are shown at one end and at the
front, and the grooves are arranged so that, on completion, the marginal
frame stands above the top just