Creosote that creosote contained a mixture of creosol and guaiacol. Later investigations by Gorup-Besanez, A.E. Hoffmann, and Siegfried Marasse showed that wood-tar creosote also contained phenols, giving it a feature in common with coal-tar creosote. Historically, coal-tar creosote has been distinguished from what was thought of as creosote proper—the original substance of Reichenbach's discovery—and it has been referred to specifically as "creosote oil". But, because creosote from coal-tar and wood-tar are obtained from a similar process and have some common uses, they have also been placed in the same class of substances, with the terms "creosote" or "creosote oil" referring to
Tyrolean shale oil Tyrol in Seefeld area were used from 1350 until 1964. In 1902, Martin Albrecht, a collector of minerals, discovered oil shale deposits on the shore of Lake Achen at Pertisau; his family still exploits and markets the oil. Tyrolean shale oil has always been an integral part of Tyrolean medicine. The shale oil contains bound sulfur, which exerts its effect in shale oil. Long before the oil refinery, the oil of the Alps, the "black gold", was already used for tar, light oil (naphtha), impregnation of wood fences, as waterproofing for roofs and asphalt roads. Due to the low yield,