British Library MS. Sloane 3632. Paper. Quarto. 187 folios. 17th Century. 1. A work of the philosophers' stone. ff.2b-8. Begins: 'Acetum [alchemical symbol] Philosophorum. 1. Rx [Mercury]vive, clens it well by washing it'. 2. 'A booke of the transmutation of mettals made by the noble lord Bernard Earl of Treviers and Naige in Germany'; inscribed 'To the famous Doctor Thomas of Bononia, governor of France'. ff.10-27. A translation of part of the Liber de Alchemiae of Bernard Trevisanno; from the middle of the Second Part (page 757 of the printed copy) to the end of the work. Printed in Latin in the Theatrum Chemicum. ed Argentorati, 8vo 1613-31, vol I, p.748. 3. The work of the Philosophers' stone; in fifteen processes, taken from ancient authors. ff.28-40. 4. 'A plain methodicall Declaration of Geber's Three Medicines; in which is contained the true way and perfection of the Philosophers' Stone; translated out of the Latin. Printed in Latin, as the first division of a work entitled 'Opus Tripartitum de Philosophorum Arcanis: auctore anonymo, sub nomine Aeyrenaei Philalethes, natu Angli, habitatione Cosmopolitae' ed . Londini, in 8vo, 1678. 5. 'Of the natural principles and procration of mettalls'. f.109. 6.'Remarks taken out of Cornelius Agrippa'. ff.111-114. 7. Notes upon Geber's Three Medicines. f.116b. 8. Table of principal matters contained in art. 4. f.117b. 9. A treatise 'De Lapide magno' [In English] . ff.121-132. Begins: 'Take of the cleanest and clearest sea salt as is made by the sea itself such as is brought by shipping from Spain'. ends: 'and which I have seen with my eyes and with my own hands extracted. Fare well and the Blessing of God be with thee. Amen and Amen'. 10. Memoranda of chemical experiments, made in June 1702. f.132b. 11. Chemical processes; endorsed 'The writing of Robert Kellum'. ff.133-138. 12. 'A practice of Sir George Ripley, which he sent in writing to his Master before his Journey'. ff.139-142. At the end: 'By your chaplaine, Sir Geo. Ripley, Channon of Bridlington,and Curat of Flaxbridge Churche'. In the same handwriting as the preceding. 13. 'A process given by an German'. f.143. 14. A tabular treatise of the 'three Principles which originally constitute the world'. f.146b. 15. '[Pneuma Poieseos Catholicon] : or, The universall Spirit of Poetry; comprehending the most sublime notions in Theology, Physiology, Astronomy, Astrology, and Geography; mixt with diverting satyr on a tribe of Pretenders, and allso illustrated with the truths of Hermes, learnedly described in severall Raptures thro' all the Heavenly Orbs. Writ by a person of Quality, under the fictitious name of Torescissa'. In three parts. In another title page the poem is called Hermetick Raptures'. ff.148-151. Prefixed to the poem are the following:- a. 'The Publishers epistle to the Reader'. f.149. b. Latin verses in praise of the author; signed with the initials J.D. f.152. c. A letter to the Reader justifying the qualities ascribed to the poem in the title page; and shewing that it was written in the year 1703. Signed Robert Kellum (?); subsequently scratched through. f.155. d. 'The Authors epistle to the Publisher'. ff.158-187. Part First begins: 'Nature's arcana lay before my eyes, And I, unrav'ling her hid mysterys'.