1. Sloane MS 410 Reference (shelfmark): Sloane MS 410 Title: Scope & Content: Sir Edward Kelley, Alchemist: Treatise on the Philosopher's Stone, possibly by: 16th cent. includes: ff. 42 b-44b Robert Birport, Monk of Ford Abbey, county Devon, in 1406: On the Philosopher's stone: 16th cent. Collection Area: Western Manuscripts Languages: English Date Range: 16th century Extent: 1 item