Annotated extracts from Michael Sendivogius and Jean d'Espagnet respectively. The right-hand half of each page consists of exegetical notes, which in the first set are headed 'Collectionum Explicationes', and in both cases take up rather more space than the original citations. f. 3v has the column headings 'Arcanum Hermeticæ Philosophiæ Opus' and 'Explicationes'.

Reproduced with German translation and commentary in Karin Figala's unpublished thesis 'Newton als Alchemist' (Munich, 1978). See Dobbs, Foundations, 152-5 and 160-62 for a fuller description and arguments for the dating; also Figala, 'Exakte Alchemie', 179. H1192 is the Sendivogius work in question: for the rest of Newton's Sendivogius collection see also H445, 1131 (the Musaeum Hermeticum reformatum, which includes tracts by Sendivogius) and 1485 (but H445, a French version, post-dates these notes if Dobbs's dating is correct). H1311 is his copy of d'Espagnet's La philosophie naturelle. Further notes on Sendivogius in Keynes Ms. 55, Yahuda Ms. Var. 259.4 and Babson Ms. 925, Dibner Institute.