284, E.A plain or full bottom is sometimes covered by a base or cover strip to hide the joint and secure the bottom, as in tool chests.

This strip may be mitered at the corners.
[Illustration: Fig.284.Methods of Attaching Box Bottoms.] _The Lids of Boxes._ The simplest form is a full flat cover, Fig.

285, A, which may be nailed or screwed to the box, as in packing cases.

The cover may slide into a groove, Fig.

285, B, along the sides and into one end, the other end being lowered to admit it.