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Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light, fol. 80

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.

Original at the GWLB · Page image · Annotations (IIIF) · Download text

The machine reads it as

  1. out of che Cla(s pals chroush a (mall round hole, Or aper-
  2. cure made in a licele Plate ol Lcad, Brals, or Silver, Where
  3. rich the Cilass is to be corered, itrich hole must be no
  4. bioger chan is necellarr for liohe enough co pass chrouoh.
  5. Fior (0 it will render the Object distinct, the Plare in wrhich
  6. cis made intercepting all che erroneous pare oF che Lighe
  7. irhich comes From che Verges ot che speculum AB. Such
  8. an Instrumene ell made if ic be 6 Foor long, (reckonine
  9. che lenoch from che Speculum eo che Prilum, and FhenCC EO
  10. Ehe FOcuS T) ill bear an aperture of 6Tnches ac che Spe-
  11. culum, and magnity becreen ero and chrec hundred cimes.
  12. Buc che hole II here limies che aperture wrich more advan-
  13. eage, chen it che aperture iras placed ac the speculum. IF
  14. che Instrument be inade longer or Phorter, the aperture must
  15. bc in proporcion as the Cube of che square ROOE of ehe
  16. lenoch, and che magnitrins as che apercure. Buc itS COn
  17. veniene chac che speculum be an luch or erro broader chan
  18. ehe apercure ac che least, and chac che Clals of the speculum
  19. be chick, chac ic bend noc in the morkeing. The Prilm FFO
  20. must be no bigger chan is necellarr, and its back sde FO
  21. must noc be quick-silvered orer. For Without quick- silver
  22. ie will refect all che Liohcincident on ic trom chespeculum.
  23. In chis Instrument che Object rill be inverced, buc may
  24. De crected by makcing che square Sides FF and FC oF the
  25. PriIm FFC noc plane buc spherically convex, chac the RayS
  26. may crols as Well betore ther come ac ic as attermards bc-
  27. circen ic and che Fre- Olals. IF ic be delired chac the Instru-
  28. ment bear a larger aperture, char may bc allo done by com
  29. Polins che Speculum oF ciro Glastes wich Wacer Betreen
  30. chem.
  31. AI

Cite

Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light, fol. 80. Machine transcription, not an edition: Leibniz Legible (model FoNDUE-GD_v2_ft_Leibniz, run 74). https://leibnizlegible.com/page/1677894601:0090?run=74