211. The work of the joiner, unlike that of the carpenter, is usually where it must bear the test of close examination. It is, therefore, necessary that the several pieces of which a whole work is formed, be united by joints that are neat in appearance, or so made as to be hidden from sight. Such joints must be strong even where there is apparently but little stress upon them; otherwise, the parts are likely to become loose from shrinking and swelling, and to expose unsightly seams.

Some of the joints already described, while particularly adapted to uniting timbers in carpentry, may under given conditions be equally suitable for the smaller work in joinery. It may also be true that some which are treated in connection with joinery are quite as useful in carpentry. As already stated, the classification here used only serves to fix in mind a few general principles governing the adaptation of joints; it cannot be arbitrarily adhered to.

The rule in carpentry that makes the simplest form of joint best, does not always hold in joinery, because the methods of the joiner admit of greater accuracy, and also because the pieces of material used are smaller, and consequently less affected by shrinkage.

Beads and Moldings.