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Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light, fol. 132

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: 0.91.

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The machine reads it as

  1. olen their Colours appear RronS and perfect. FOF
  2. once, br luch means a5 I then had, I ineasured thc
  3. srcatest Semi-diameter otthe interior Tris about 12 de
  4. crees, the breadth ot the red, vellor and sreen in that
  5. lris 63 or 64 minutes, behdes the ontmos faint red ob
  6. Ecured by Brightness oF the Clouds, For wtrich ire
  7. may alloir 3 or q minutes more. The breadeh oF the
  8. Dlue ras about 40 minutes ore besides the violet,
  9. ertich ras Fo much obleured by the briohtnels oF thC
  10. Clouds that I CouId nOE meature itS BrCadE. BUF
  11. suppolins the breadth of the blue and violet together
  12. to equal that ot the red, vello and sreen together, the
  13. Wrhrole breadth ot this lris wisl be about 2 degrees a5
  14. abore. The least distance betreen this Tris and the ex
  15. terior Tris ras about 8 degrees and z0 minutes. The ex
  16. terior Iris Was broader than the interior, buE (0 Faint,
  17. especially on the blue ide, that L could not mealure its
  18. breadtm distinctlr. At another time When BOTH BONS
  19. appeared more distinct, I measured the breadth oF the
  20. interior Tris 2 gr. 10, and the breadth of the red, vel
  21. lorr and sreen in the exterior Iris, Wras to the breadt
  22. otthe lame Colours in the interior 25 3 t02.
  23. This Fixplication oE the Rain- BoW is vet Further con
  24. tirmed by the kenovn Fxperiment (made by Antonius
  25. de Dominis and Des-Cartes) ot tranging up any Where
  26. in the Sun- hine a CiL IIS-Clobe filled rith Water, ane
  27. riemins it in such a posture that the rays wrhich come
  28. From the Globetothe tre may contain rith the Sun
  29. cays an Angle oF cither 42 Or 50 degrees. For il the
  30. Ansle De about 4.2 Or 43 degrces, the Spectator (suj
  31. Dose at O) Mail sec a tuit red Colour in that side oF tH
  32. Globe apposed to the Sun as tis represented at f
  33. an

Cite

Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light, fol. 132. Machine transcription, not an edition: Leibniz Legible (model FoNDUE-GD_v2_ft_Leibniz, run 74). https://leibnizlegible.com/page/1677894601:0152?run=74