CHEMICAL SUBSTANCES AND PRODUCTS, AND PHARMACEUTICAL PROCESSES. Sub-Class A.—Chemical Products. [ 458 ] Adams, J., Victoria Park, Sheffield.—Chemicals. [ 459 ] Allen, Frederick, Manufacturing Chemist, Bow Common.—Aniline and fine chemicals. [ 460 ] Albright & Wilson, Oldbury.—Phosphorus, amorphous phosphorus, chlorate of potash, precipitated sulphur, and Crew’s chloride of zinc. [ 46i ] Allhusen, C., & Sons, Newcastle-on-Tyne.—Refined alkali, soda ash, crystal of soda, bicarbonate of soda, and bleaching powder. [ 462 ] Andrew, Frederick William, 3 Neville Terrace, Queen's Elm, Brompton.—Designs, manufactures; colla-ceramica, and petroconine, for repairing antiquities. [ 4 6 3 ] Avril, John, 12 Castle Street, Holborn.—Insect-killing powder and patent apparatus. [ 464 ] Bailey, John, Shooters Hill, Longton, Staffordshire.—Colours for porcelain, earthenware, and glass. The exhibitor, whose business has been established for more than forty years, manufactures all descriptions of colours used in making porcelain, earthenware, and glass. He also supplies all kinds of potters’ materials, and will forward samples, price lists, &c., to any address, upon application. [ 465 ] Bailey, William, & Son, Horseley Fields Chemical Works, Wolverhampton.Chemicals. [ 466 ] Baker, Edward, & Sons, Birmingham.—Nonpareil paste and liquid blacking; pure black- lead—powder and block. [ 467 ] Baker, Francis B., Hampton Court.—Crystals of sulphate of magnesia, copper, and alum. [ 468 ] Balkwell & Co., Plymouth.—Metallic arsenic, lump arsenic, crystallized arsenic, and ground white arsenic. ( 37 )