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Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light, fol. 61

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. and subducted From the Anole oF Retraction oF the mean
  2. retranoible RayS, Which was 53 deg. 35, gires the An-
  3. oles ot Retraction of che most and least retrangible Rays
  4. 54 de8. 5 2, and 53 deg. 4 58, Whole Sincs are 8099
  5. and 7995, the common Angle ot Incidence beins 31 de8.
  6. 15 and its Sine 5188; arid chese sines in che least round
  7. numbers are in proportion to one another a5 78 and 7 7
  8. 10 50.
  9. Noir il rou subduet che common sine ot Incidence 50
  10. trom the Sines of Retraction 77 and 78, the remainders
  11. 27 and 28 Them chac in (mall Retractions che Retraction
  12. OF che least retransible Rays isto the Retraction of the molt
  13. retransible ones 25 271028 very nearly, and chat the dit-
  14. ference ofthe Retractions of che least retrangible and most
  15. retransible Rars is about the 27th pare oF che Whole Re-
  16. Fraccion ot che mean retranoible Rars.
  17. WVhence cher chac are stilled in Opricks will casils un-
  18. derstand, chac che breadch ot che. least circular space into
  19. irtrich Obiecc. Glasses ot Telelcopes can collect all Ports ot
  20. Parallet RayS, is abouc the 27sch part oF half che aperture
  21. ot che ClalS, Or 55ch parc oF che whole aperture; and
  22. chac che Focus of the most retransible Rays is nearer to the
  23. Objecc- Class chanthe Focus ot the least retransible ones, by
  24. abouc che 27th part ot che distance berween. the Objecr.
  25. Class and che Focus ofthe mean retrangible ones.
  26. And is Rays oFall Pores, Roing from any one lucid point
  27. in che Axis of any conrex Lens, be made by the Retraction
  28. ot che Lens EO COnVerse to poins not too remore from the
  29. Lens, che Focus ol the most retrangible Rays BaIl bC
  30. nearer co che L ens chan the Focus ot che least retrangible.
  31. ones, by a distance irtich is ro che 27sch pare oF che di-
  32. Aance ot che Focus of the mean retrangible Rays From che
  33. Lens as che distance becireen thac Focus and the lucid
  34. POImE

Cite

Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light, fol. 61. Machine transcription, not an edition: Leibniz Legible (model FoNDUE-GD_v2_ft_Leibniz, run 74). https://leibnizlegible.com/page/1677894601:0071?run=74