Stained Glass Work Part 20

_Cartoon_, the design of the window, full size, on paper.

_Chasuble_, the outermost sacrificial vestment of a bishop or priest.

_Cope_, the outermost ceremonial and processional vestment of a bishop or priest.

_Core_ (of lead), the crossbar of the "H" section as shown in fig. 34.

_Crocketting_, the ornamenting of any architectural member at intervals with sculptured bosses or crockets.

_Cullet_, the waste cuttings of gla.s.s. Generally used over again in greater or less quant.i.ty as an ingredient in the making of new gla.s.s.

_Cut-line_, the tracing (containing the lead lines only) by which the work is cut and glazed.

_Flux_, the solvent which a.s.sists the melting of the metallic pigments in the kiln. Various materials are used, _e.g._ silica and lead, but unfortunately borax also is used, and I would warn the student to buy no pigment without a guarantee from the manufacturer that it does not contain this tempting but very dangerous and unstable ingredient. (See p. 112).

_Form_, the sheet of "continuous cartridge" or cartoon paper on which the dimensions, &c., are marked out for drawing the cartoon.

_Gauge_, (1) the shaped piece of paper by which the diamond is guided in cutting; (2) the standard of size and shape in any piece of repeated work (as quarry-glazing).

_Grisaille_ (from Fr. _gris_, grey), work where a pattern, generally geometrical, in narrow coloured bands, is superimposed on a background of whitish, grey, or greenish gla.s.s diapered with painted work in outline or slight shading.

_Groseing_, the biting away the edge of the gla.s.s with pliers to make it fit. With regard to this word and to the term "calm," I have never found any one who could give a reason for the name or an authority as to its spelling, the various spellings suggested for the _latter_ word including Karm, Calm, Carm, Kaim, and even Qualm! But while writing this book I in lucky hour consulted the treatise of Theophilus, and was delighted to find both words. The term he applies to the leads is "Calamus" (a reed), while his term for what we should call pliers is "Grosarium ferrum" (groseing iron). So that this question is set at rest for ever. Glaziers must henceforth accept the cla.s.sic spellings "Calm"

and "Groseing," and one may suppose they will be proud to learn that these everyday terms of their craft have been in use for 900 years, and are older than Westminster Abbey.

_Lath_, the ruler, 3 to 8 feet long, and marked with inches, &c., used in setting out the "forms."

_Lathykin_, doubtless old English "a little lath," described p. 137.

_Lasting-nails_, described p. 141.

_Leaf_ (of lead), the two uprights of the "H" section (fig. 34).

_Muller_, a piece of granite or gla.s.s, 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 gla.s.s.

_Plating_, the doubling of one gla.s.s with another in the same lead.

_Quarries_, the diamond, square, or other shaped panes used in plain-glazing.

_Reamy_, wavy or streaky gla.s.s. (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.

_Shafting_, see "Canopy."

_Shooting_ (in carpentry), the planing down of an edge to get it truly straight.

_Squaring-out_, enlarging (or reducing) any design by drawing from point to point across proportional squares.

_Stippling_, described p. 100.

_Stopping-knife_, the knife by which the gla.s.s and lead are manipulated in leading-up.

_Tabernacle work_, see "Canopy."

_Template_, the form in paper, card, wood, or zinc, of _shaped_ openings, by which the correct figure is set out on the cartoon-form.

THE END