Leaf (of lead), the two uprights of the "H" section (fig. 34).
Muller, a piece of granite or glass, flat at the base, for grinding pigment, &c.
Obtuse, an angle having a wider opening than a right-angle or "perpendicular."
Orphreys (aurifrigia, from Lat. aurum, gold), the bands of ornament on ecclesiastical vestments.
Patina, the film produced on various substances by chemical action (oxidation, sulphurisation, &c.), either artificially, as in bronze sculpture, or by age, as in glass.
Plating, the doubling of one glass with another in the same lead.
Quarries, the diamond, square, or other shaped panes used in plain-glazing.
Reamy, wavy or streaky glass. (See p. 179.)
Scratch-card, a wire brush to remove tarnish from lead before soldering (p. 144).
Setting, fixing a charcoal or chalk drawing on the paper by means of a spray of fixative.