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Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light, fol. 9

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: 0.88.

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The machine reads it as

  1. 10
  2. block Sxocappeared inthe middle ot the RinoSOFC olOuES
  3. without any other presture than that ot the reisht ot
  4. the Cilass. And no mealurins the Diameter ot the
  5. tifch dark Cirele as accurate lr as l could, I Found it the
  6. titth part ot an Ineh preciselr. This measure vras taken
  7. rith the points ot a pair of Compasses on the upper sUI-
  8. tace on the uipper CitlaIs, and my Liye ras about cieht
  9. Or nine Tnches distance trom the Cilals, almost perpen-
  10. dicularly over ic, and the Class Was? oF an Inck thick,
  11. and thence ic is caly to collect that the true Diameter
  12. Ot the Rins betrcen the Glasses Was greater than its
  13. mealured Diameter abore the Classes in the proportion
  14. et 80 t079 or thercabouts, and br consequence equal
  15. co PartS oF an Inch, and its true Semi-diameter equal
  16. 10 PartS. Nor a5 the Diameter oF the Sphere (182 In-
  17. ches) is to the Semi-diameter of this htch darke Rins
  18. EDaLES OF an Inch) (0 is this Semi-diameter to the
  19. thickness oF the Air at this Ateh dark Ring; irhich is
  20. ThereFOrC; OF inasa PaNtS oF an Inch, and the ftch
  21. 1c
  22. parE ThCTCOF; viZ. ThC aBth part oF an Tuch, is che
  23. thicknels oF the AIr at the RPK OF these dark RInOS.
  24. The same Experiment lrepeated rith another dou-
  25. ble conrex Object- glass ground on both sdes to one and
  26. the Came Sphere. IES Focus was distant From it 168
  27. Inches, and cheretore the Diameter ot chat Sphere Wras
  28. 184 Tnches. This Glass beine laid uxon the lame
  29. plain Gla(S, the Diameter OF the AEEH oF the dark
  30. Rinss, Wrhen the black Spot in their center appeared
  31. plainty without pressins the Glasses, as by the mea-
  32. lure ot the Compasses upon the upper Cila(s s parts
  33. ot an Inch, and by consequence betireen the Gilasles it
  34. 23
  35. Va5 FOr the upper CilaIS ass ot an lnch thick,
  36. and

Cite

Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light, fol. 9. Machine transcription, not an edition: Leibniz Legible (model FoNDUE-GD_v2_ft_Leibniz, run 74). https://leibnizlegible.com/page/1677894601:0181?run=74