But the panel, which is grooved into the frame can shrink or swell without harm to the general structure.
In a gained joint, as in a case of shelves, Fig.

266, No.

29, p.

179, the gain in the uprights does not extend quite to the front of the shelves, and there is a corresponding slight shoulder at the front end of the shelf, so that if the shelf and support shrink unevenly, no gap will be apparent.
A drawing-board, Fig.

280, p.