Medicinal Turpentine Duty (Yield) 67. Mr. Erroll asked the Chancellor of the Exchequer what was the annual yield from the tax on turpentine used for medicinal purposes; and what is the estimated yield at the new rate. Mr. R. A. Butler About £5,000 a year at the pre-Budget rate of duty of 1s. 10½d. a gallon, and about £7,000 a year at the present duty of 2s. 6d. a gallon.