To work a return bead round the arch shown by Fig. 1, a mould is prepared to the required shape, and fixed to a radius rod, as shown in Fig. 2. The flat part of the wall is roughed in, and the bead is run in coarse stuff by the aid of the mould, which also works a part of the soffit, the rest of which between the two beads is done with the floating rule. After all the work has been roughed in ready for the fining coat, the mould is readjusted so as to be in position to work the finished bead, which is usually done in Keene's cement. The part of the bead below the springing line is done by detaching the mould from the radius rod, aud using it in the ordinary way; while in cheap work the bead round the arch is sometimes worked without the aid of the radius rod. The walls are then finished off, the bead is run, and the soffit of the arch completed as in roughing out.

Running Return Bead round an Arch.