British Library MS. Sloane 3657. Paper. Folio. 54 folios. 16th Century. Bound with MS. Sloane 1316 and two others. Alchymical collections; amongst which may be noticed- 1. 'Off the workinge of Lead in Alkamye after Vincentius, etc'. f.3. 2. Translation of a treatise by Lucas Rodargero Eutopiensis, entitled Pisces Zodiacus inferioris vel De solutione philosophica. ff.4-24b. Printed in Latin, in the Theatrum Chymicum, Vol V. p.811. At the end is the following note: 'Translated first by Richard Beaucostes in Channon Rowe and coppied owt as heare apeareth by me Clement Draper the xxvi daye of February anno domini 1596'. 3. Extracts from Raymond Lully's Testament, etc. ff.25-33. 4. The making of the great Elixir or philosophers' stone, etc. ff.34-39. 5. A treatise on the Philosophers' Stone, with a preface. ff.39-43. The first Chapter begins: 'Off the fower workmanshipes of this arte, that is solucion, congeallation, albyfication and rubyfication'. 8. To make the best prepared salt, etc. f44. 9. A letter to friends pointing out to them the right study of the philosophers' Stone. f.45. 10. Observations upon the same. f.47. 11. Secreta philosophiae Bakonis. f.50b.