It is used in high class joinery, on members that join lengthwise of the grain.
_No.61.A stretcher joint_, Fig.

268, is a slip joint in which one or both sides is mitered.

It is used in frames for stretching canvass for paintings by driving wedges from the inside.

Two forms are shown in 61a and 61b.
_No.62.A strut joint_, Fig.

268, is a form of miter joint used in making trusses.
_No.