Creosote mixed with coal-tar creosote, or fortified with pentachlorophenol. Water-gas-tar creosote is also derived from petroleum oil or shale oil, but by a different process; its distilled during the production of water gas. The tar is a by-product resulting from enrichment of water gas with gases produced by thermal decomposition of petroleum. Of the creosotes derived from oil, it is practically the only one used for wood preservation. It has the same degree of solubility as coal-tar creosote and is easy to impregnate into wood. Like standard oil-tar creosote, it has a low amount of tar acids and tar bases, and
Wright's Coal Tar Soap Tar Soap section of the business. Readers of the "Country-Side" magazine in 1906 were offered the chance to buy an inexpensive cabinet frame for one shilling, in which they could stack twelve empty Wright's Coal Tar Soap packets to act as sliding drawers in a cabinet for natural history specimens. As the editorial mentioned: ""the measurements have been chosen because so many of our readers are users of Wright's Coal Tar Soap"". Wright's Coal Tar Soap was a regular advertiser in the magazine. By 1909 the company was one of the leading pharmaceutical houses in the country, and in that