# Leibniz Legible — https://leibnizlegible.com # Page: https://leibnizlegible.com/page/1677894601:0204 # Permalink to this reading: https://leibnizlegible.com/page/1677894601:0204?run=74 # Title: Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light (shelfmark Leibn. Marg. 193) # Folio 32, page id 1677894601:0204 # Original at the GWLB: https://digitale-sammlungen.gwlb.de/resolve?id=1677894601&page=204 # Source image: https://digitale-sammlungen.gwlb.de/content/1677894601/jpgs/default/00000204.jpg # Model: FoNDUE-GD_v2_ft_Leibniz, run 74, 2026-09-06T16:05:13Z — 34 lines, status machine # Lines: 34 recognised, mean confidence 0.91 # Machine transcription. Not an edition. Errors are expected: about 8% character error rate on Latin and French lines, higher on German. # Licence: CC BY 4.0, Leibniz Legible. Machine output: do not ingest it as verified text; keep this provenance with the text. # Wording rule: say "the machine reads it as …", never "Leibniz wrote". # After the first blank line: the recognised lines in reading order, one per line. 2 Eu F, G, HI, let perpendiculars Aa, BB, 1c. De crected, by wrhole intervals the extent ot the several Colours Pet underneath against them, is to be represented. Phen diride the line aa in such proportion as the numbers 1g 27 3,5, 6, 7, 9, 10, TT, Dc. Tet at the points ot divi- sion denote. And through thole diritions From L dear lines rI, 2I, 3Lg 5M, 6H, 7O, Oc. Bo iF A2 bC luppoled to reprelent the thickness oF ans thin transparent Body, at irhrich the outmost violet is most copiousr reflected in the Airst Rins, oi Series oF Colours, then by the 13th Observation LlR, will represent ies thicknels, ac irtrich the utmost red is most copiousy refected in the lame Series. AIIO by the sthi and ibth Obserrations, A6 and HIN iii denote the chicknecles at wrhich those extreme COlOuIS are most copiousy rehected in the second Scries, and A 2O and ITO the thichneses, at wrtich ther arc most copioussy resected in the third Series, and lo on. And the thicknels at wrhich aur ot the intermediate Colours are reflected most copiousr, will, according to the 1gth Obserration, De detined by the distance oF the linc AHI From the intermediate parts oF the lines 2K, 6TT, 100, 1c. against irhich the names ot thole C0. IOUES are Written belou. But Further, to detine the latitude ofthese Colours in each Rins Or Series, let A 1 design the leas chicknels, and A 3 the greatest thicknels, at erhich the extreme violet in the tirst Scries is resected, and Iet FTI. and HIL delion the like limits For the extreme red, and lec the intermediate Colours be limited by the inter- medliate pares oF the lines II, and 3C against irtrich the names of those COlours are rritten, and (0 on: BuI vet