CHAPTER XI.—CLAY-MODELLING AND PLASTER-CASTING 151

TOOLS AND METHODS—THE TECHNIQUE OF THE ART—GLUE AND GELATINE MOULDS—HOLLOW CASTING—MODELLING A FOOT—BAS-RELIEF MODELLING—A MEDALLION HEAD—COIN AND METAL CASTS—PLASTER-CASTING IN GENERAL—HOW TO FIND AND MOUNT SIGNETS