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 and proprietors of "Wright’s Coal Tar Soap" and other coal tar specialities". It soon became necessary for the company to lease adjoining premises, until in quick succession numbers 44, 46, and 48 were added to the original warehouse at Southwark Street. Wright met an 'untimely death' in Dundee in September 1877: "he caught a cold in the face, which developed into erysipelas, the inflammation extending to the brain, he succumbed with great suddenness at the age of fifty one". Erysipelas is an acute infection of the skin and underlying fat tissues, usually caused by the streptococcus bacteria. Two of his