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Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light, fol. 55

Machine transcription. Not an edition. Errors are expected: about 8% character error rate on Latin and French lines, higher on German. Mean line confidence on this page: 0.90.

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The machine reads it as

  1. s
  2. oF 2 Ray Wrhich tias a mean degree of Retrangibiliey, and
  3. chis sinc is in a giren Proporcion co the equal sines ot
  4. Incidence, those ocher Sines of Retraction will also bc in
  5. siven Proportions coche equal sines ot Incidence. Nou
  6. When che sines of Incidence are equal, ic will appear by
  7. the folloino Experimene that the Sines of Retraction are
  8. in a giren Proportion to one another.
  9. Exper. 15. The Sun Chinins into a dark Chamber
  10. chroueh a licele round hole in che Windor-Buc, lec S re-Fis. 26.
  11. present his round uhice image painced on the opposice
  12. Nall by his direct Ligne, P This oblong coloured Imase
  13. made by retractinq chac Lighe wich a Prilm placed ac che
  14. Windon; and pF, Or 2p2t, or 3P 3t, hisoblone coloured
  15. lmage made by retractins again che lame Lighe sidemays
  16. ich a second Prism placed immediacely atcer che frst in
  17. a crols Policion eo ic, as vas explained in che fitch Fxperi-
  18. menE: thac is eo Par, pt When cheRefraction of the second
  19. Prilm is (malI, 2p 2 F When ies Retraction is greater, and
  20. 3P 3t when ic is greatest. For such will be the diversiey
  21. ot che Retractions it che retractins Angle oF che sccond
  22. Prilm be oF various Magnicudes; suppOse OF FIIECCN OF
  23. civener degrees ro makce the Image pi, oF chirey Or
  24. forey comakce the Image 2p 2F, and ot sixer co mate
  25. the lmage 3p 3t. Buc for anc ot solid Class Prilms wich
  26. Angles ot conrenient bignesles, chere mar be Vessels
  27. made ot polistred Places ot Class cemented cogether in the
  28. Form of Prilms and filled wich Wacer. Thelechines beins
  29. thus ordered, I obserred chac alt the Colar Images Or co-
  30. loured Spectrums P P, pt, 2p 2t, 3P 3c did very nearty
  31. converse co che place S on irhich che direct Lighe ot the
  32. Sun Fell and painced his irhice round Image when che
  33. Prisms vere calcen arvar. TheAxis of che Spectrum P I,
  34. chac is the Line drann chrough che middle oF ic Parallel t0
  35. HES

Cite

Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light, fol. 55. Machine transcription, not an edition: Leibniz Legible (model FoNDUE-GD_v2_ft_Leibniz, run 74). https://leibnizlegible.com/page/1677894601:0065?run=74