These are adopted generally for ornament, or in order that the opening of a joint caused by shrinkage may be hidden in the shadow cast by the projection of the bead.

1 The consideration of linings, skirtings, architraves, and the grounds to which they are fixed, does not come within the limits of this course. Some of these are, however, shown in a few of the figures to make them more complete, and to save repeated illustrations when they are described in Part II.

Beads are narrow, convex, plain mouldings;l in section generally parts of a circle.

When the head is formed upon a hoard, in the substance of the wood itself, its upper surface being flush, or nearly so, with that of the board, it is said to be "stuck" (see Figs. 482, 483, 484).

If the bead is formed in a separate strip, and nailed or bradded 2 to the board, it is described as "laid in" or 'planted" (see Fig. 485).

A Nosing or Bounded Edge is formed by rounding the edge of a piece of stuff, as shown in Fig. 481. It is frequently used for finishing off the edge of a projecting board, such as the tread of a step, a window board, etc.

Beadings 100383

Fig. 481.