Ripley, George 1652a
Ripley, George. The Compound of Alchymie. A most excellent, learned, and worthy worke, written by Sir George Ripley, Chanon of Bridlington in Yorkeshire, Conteining twelve Gates, in: Ashmole, Elias, ed. Theatrum Chemicum Britannicum, Containing Severall Poeticall Pieces of our Famous English Philosophers, who have written the Hermetique Mysteries in their owne Ancient Language (London, 1652), pp. 107-93.