London, Wellcome Institute MS. 436. 8 + 36 + 10 folios. 190x115mm. Mid 17th Century. Benjamin Lock his Picklock to Riply his Castle. [Transcribed, with a preface, by Arthur Dee: together with 'The huntinge of the Greene Lyon', here ascribed to 'Amen', but according to Elias Ashmole, probably by Abraham Andrews.] [On f2 'This Booke I receaued from Mr Heriot [Thomas Harriott], at Sion howse, who for many yeares, instructed the Earle of Northumberland [Henry Percy] in the Mathematicks, when he liued in the tower. Anno. 1602. June 6.']