glass painting (glaspanting)

1. The art or practice of producing designs in color on or in gla . In gla -painting (or gla -staining, as it is also called) two methods are chiefly employed: (a) the enamel method, consisting in painting on the gla in col ors, which are then burned into it; (b) the mosaic method, consisting in forming a design of separate pieces of stained or colored gla set in cames of lead and braced for fusing the materials of gla in a gla -fur nace. Gla -pots are made of the most refractory earths or fire-clays by a tedious proce , to insure the perfect uniformity and dryne nece ary to enable them to resist the great heat of the furnace, and they constitute one of the lead-gla (flint-gla and stra ) are covered, and have an chief elements in the cost of gla . The gla -pots for opening at the side; for all other kinds of gla they are open, with sloping sides, like pails without handles. gla -pre (glås'pres), n. A pre for compre ing gla after it has been placed in a mold. It is a plunger which may be brought down upon the open top of the mold placed beneath it, the mold being firmly held in place while the pre ure is applied. gla -rope (glas'rop), n. The stem of a gla sponge, as Hyalonema. gla -shell (glas's hel), n. A pteropod of the family Hyaleida: so called from the thin hya glaucescence caused by the presence of iron. E. H. Knight. Also called gla - makers soap.