Charnook, Thomas. A great alchemist of the sixteenth century; a surgeon who lived and practiced near Salisbury, studying the art in some neighbouring cloisters with a priest. It is said that he was initiated into the final secret of transmutation by the famous mystic William Bird, who “had been a prior of Bath and defrayed the expense of repairing the Abbey Church from the gold which he made by the red and white elixirs” (Royal Mas. Cyc.). Charnock wrote his Breviary of Philosophy in the year 1557 and the Enigma of Alchemy, in 1574.
Source: H.P.Blavatsky - The Theosophical Glossary