The laboratory: or, school of arts: in which are faithfully exhibited, and fully explain'd, I. A variety of curious and valuable experiments in refining, calcining, melting, assaying, Casting, Allaying, and Toughening of gold; with several other Curiosities relating to Gold and Silver. II. Choice secrets for jewellers in the Management of Gold; in Enamelling, and the Preparation of Enamel Colours, with the Art of Copying precious Stones; of preparing Colours for Doublets; of Colouring Foyles for Jewels, together with other rare Secrets. III. Several uncommon experiments for Casting in Silver, Copper, Brass, Tin, Steel, and other Metals: Likewise in Wax, Plaister of Paris, Wood, Horn, &c. With the Management of the respective Moulds. IV. The Art of making Glass: Exhibiting withal the Art of Painting and making Impressions upon Glass, and of laying thereon Gold or Silver; together with the Method of preparing the Colours for Potters Work, or Delf-Ware. V. A Collection of very valuable Secrets, for the Use of Cutlers, Pewterers, Brasiers, Joiners, Turners, Japanners, Book-Binders, Distillers, Lapidaries, Limners, &c. together with the Art of Marbling Books or Paper. VI. A Dissertation on the Nature and Growth of Salt-Petre: Also, Several other choice and uncommon Chymical Experiments. Vii. The Art of preparing Rockets, Crackers, Fire-Globes, Stars, Sparks, &c. for Recreative Fire-Works. Viii. The Art and Management of Dying Silks, Worsteds, Cottons, &c. in various Colours. Compiled from German, and other foreign authors. Illustrated with copper plates. By G. Smith. The third edition, with additions of a great number of valuable receipts; particularly, a short, plain, and easy introduction to the art of drawing in perspective