Patent or glue size and best whiting- mixed and spread on like paint is generally used; several coats may be given. Or plaster-of-Paris and whiting in equal parts could be used. When quite dry, smooth down with glasspaper or, better still, pieces of pumice-stone of various Bhapes to fit the hollows, rounds, etc., using a coat of thinned-out whiting and 'size as a lubricant, wiping off the surplus with rag and clean water. To stain black, mix a quantity of vegetable black or lampblack in 1 part French polish and 3 parts spirit. Then polish with ordinary polish stained an intense black by adding a small quantity of aniline black spirit dye.