British Library MS. Sloane 3580 A, 3580 B.

British Library MS. Sloane 3580 A, 3580 B.
Two volumes. Paper. Octavo. 240 and 222 folios. 16th Century.
Written by the hand of the compiler in the year 1580. [The second volume was numbered erroneously in the original MS. Sloane Catalogue as 3743].
A collection of chemical and alchemical treatises and processes made by Thomas Potter, and entitled by him 'Volumen Collectaneum'.
Vol I.
1. A table of the various denominations and symbols of the septem metals. f1.
2. 'A copy taken oute of a very olde written boke touchinge the golden table', etc., of Pythagoras; for prognosticating future events. f3-6.
3. 'Ars Chemica, quod est licita recte exercentibus, probationes doctissimorum jurisconsultorum'. f8-23.
Tractatus typis excusus, ed. Argentorati, in 8vo, 1566. with MSS notes.
4. 'Tabula Smaragdina Hermetis Trismegisti, peri ChmeiaV. Incerto interprete.' f23v-31.
With the commentary of Hortulanus; typis excusus, ed. Argentorati, in 8vo, 1566. with MSS notes.
5. 'Liber Consilii Conjugii de massa Solis et Lunae cum suis compendiis. f31v-139.
Typis excusus, ed. Argentorati, in 8vo, 1566.
6. The Compound of Alchymiae by George Ripley, Canon of Bridlington; 'copied out of a very falsse corrupt copy of a rugged hande, by me Tho. Potter, 1579, together with the marginall notes of the same copie'; and afterwards corrected by a purer copy. f140-166. [Printed in Ashmole's Theatrum Chemicum Britannicum, p.107.]
7. Chemical and alchemical processes. f167-183.
8. The process for making gold; written by Robert Birport, monk of Ford, in the year 1406. f184.
9. Alchemical processes. f186-190.
10. 'Rules for the understandinge of alchymie, etc.' f191.
11. 'A Book entytaled the Myrror of lighte'. f193v-208.
Begins : 'In the name of the Trinitye
This worcke nowe begyn shall we.'
12. 'A secret of Fe. Ellyas to dissolve Sol, called his glas.' f206v.
13. 'The makinge of Person, that dwellte in Flet Strete, his medycine pro Sol.' f209.
14. 'Jhon Wrightes worckinge as he teachethe pro Sole et Luna.' f209v.
15. Alchemical processes. f210v-214.
16. 'The whole worcke of the composytion of the stone philosophicall or greate Elixir.' f214v-220.
Begins : 'Firste the solutyon of the grosse bodie. Firste take xxxli weighte of Siricon, which will make xxi li of goom.'
17. Chemical and alchemical processes. f220v-231.
18. Figures of retorts and other vessels used in chymical operations. f231v.
19. 'To knowe fytt tymes for the begynning of any thinge that thow willte doe.' f233v.
20. 'Spera Pythogorae', to divine future events. f234.
21. Alchemical tables; copied from Ripley by Thomas Potter, 1580. f237-239.
Vol II.
1. 'Secrets of Alchymy; copied, anno 1580, oute of a booke once belonginge to one Spencer, an Allchimyste.' f1-23.
2. Fragments of George Ripley's Compound of Alchemy. f24-27.
3. Chemical and alchemical receipts. f28-60.
4. 'The Ordinall of Alchymy; authore T. Norton; copied oute by me Th. P. 1580; but the marginall notes by myne owne.' f61-118.
5. 'De mercurio et lapide philosophorum' - the English treatise by George Ripley, so intitled. f120-130.
Printed in Ripley's Works, Cassellis, 1649.
6. 'Opus de Magistri et Discipulo' a portion of an alchemical treatise 'copied oute anno 1580, by me Th. Potter, oute of a copy that lacked leaves in the ende, and so this treatise maymed.' f131-135.
7. 'The Marowe of Philosophy, compiled by George Ripley, Cannon of Brydington: copyed by me Th.