To fit worm screws and raised frets to a banjo, get a pair of plates with machines fitted, and adapt them to the head of the banjo by squaring the "scalloped" sides and slotting the present holes quite through, similar to the sketch. Raised frets are fitted by making a " saw cast," putting in a little powdered shellac, heating the fret-wire, and pressing it into place. Specially prepared fret-wire can be obtained for the purpose.

Fitting Worm Screws to a Banjo.