Seirogan ingredient. That ingredient in the West may otherwise go by such names as "wood creosote", "beechwood creosote", or "liquid pitch oil", and should be distinguished from industrial "coal-tar creosote". To emphasize the distinction, wood creosote in Japan is sometimes called by such names as and minor variants thereof. The wood creosote is blended with two or more recognized in for their antiseptic and other effects, but the additional ingredients used are different among manufacturers (See under #Chemical composition for a sampling of formulas). Some quarters (perhaps kanpō medicine practitioners and others) insist however that "Seirogan is not strictly speaking kanpō
Wright's Coal Tar Soap Herbert Cassin Wright (chairman), Ernest Albert Umney (vice-chairman), Ernest Blakesley Layman, James Knight, James Hamerton, and Reginald Edward Conder. Hampshire Museum has four "Coal Tar Vaporizers" made by Wright, Layman & Umney in the early 20th century, and some bill-heads (invoices) which were sent to one of their customers, Messrs Charles Mumby & Co, lemonade manufacturers of Gosport. In 1949 the company sued a trader who used a similar name. The law at the time relating to trademarks was covered by the Trade Marks Act 1938. Case law shows that a similar name is not always certain to lead to