A New Supplement...: W X Z. Water Colours. Wax. White Lead. White Vitriol. Xanthine. Zaffre.

A New Supplement to the latest Pharmacopoeias of London, Edinburgh, Dublin, and Paris, Forming A Complete Dispendatory, Conspectus, and Dictionary of Medical Chemistry, Giving All the Old and New Names, Including the New French and American Medicines, and Poisons; with Symptoms, Treatment, and Tests; as Well As Herbs, Drugs, Compounds, Veterinary Drugs, With the Pharmacopoia of the Vetenary College, Nostrums, Patent Medicines, Perfumery, Paints, Varnishes, And similar articles kept in the Shops; With Their Compositions, Imitations, Adulterations, And Medicinal Uses, Being a General Book of Formulæ and Recipes For Daily Reference in the Laboratory and at the Counter.
Fourth edition, corrected, improved, and very much enlarged.
By James Rennie, M. A., Editor of the Quarterly Journal of Foreign Medicine; the Pharmacopeia Universalis; Author of a Conspectus of Prescriptions in Medicine, Surgery, and Midwifery; the Pharmacopeia Imperialis, &c. &c.
London: Baldwin and Cradock. 1837.
London: Thomas Curson Hansard, Paternoster Row.

WATER COLOURS, in painting, are chiefly introduced under their appropriate words, such as CARMINE, LAKE, SULPHATE OF BARYTA, and also under OIL COLOURS, &c.

WAX, for sealing, is prepared by melting together different proportions of lac, resin, oil of turpentine, and olive oil; and colouring with vermilion, armenian bole, or lamp-black. See CERA.

WHITE LEAD, or Ceruse, the carbonate of the protoxide of lead. (Poisonous.) See PLUMBI ACETAS. (Poisonous.)

WHITE VITRIOL. See ZINCI SULPHAS. (Poisonous.)

XANTHINE. A yellow colouring principle recently discovered in madder by M. Robiquet.

ZAFFRE. A blue colour used in painting glass, and prepared by roasting one part of cobalt with three parts of pure sand.