SPOONER, R C The divine nine turn tan sha method, a Chinese alchemical recipe. [electronic resource] - Isis; an international review devoted to the history of science and its cultural influences Feb 1948 - 235-42 p. digital Publication Type: Journal Article ISSN: 0021-1753 Standard No.: 10.1086/348078 doi Subjects--Topical Terms: AlchemyHumans