Oxford, Bodleian Library MS. Bodley 947. Paper. 20.1 x 14.2 in., 24 folios. 17th Century. In English. Written before 1692 by James Boevey. 'The secret Algebraick key to Treasure, parallel to the Philosopher's Stone, invented by James Boevey Esq., of Cheam in Surrey. This book the Author presented to the Library in the 70th year of his Age'. A note (c.1700) inserted at the end describes the volume, which consists of lists of numbers without text, perhaps relating to problems of currency, as 'Mr Boevay's mysterious Book given to the publick library as a great Treasure. He promised to send a Clavis to it, but is dead'. On the inner back cover is a dedicatory authograph letter, undated, by the author, and a certificate in favour of the book by 'Cowemberg Van Blois of Amsterdam, Algebraical Accountant'. There is a memoir of James Boevey, the economist, in The Perverse Widow by A.W. Crawley-Boevey (1898).