4. Resin, 8 parts; wax, 1 part; melt and stir in plaster of Paris, 4
parts, or q. s.
5. Sulphur or shell-lac, melted with sufficient plaster of Paris or
colouring matter to give the desired shade. Used to join or mend pieces in
alabaster, white marble, Derbyshire spar, porphyry, and other like
substances; and to fill up cracks, supply chips out of corners, &c. The
last four are applied hot, the surfaces to be united having been
previously warmed. See CEMENT, WATERGLASS.
=Cement, Architect'ural.= 1. From paper (reduced to a smooth paste by
boiling it in water), sifted whiting, and good size, equal parts, boiled
to a proper consistence.