Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light, fol. 83

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: 0.93.

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The machine reads it as

1. 3
2. irtrich compared together crince and ratity both this
3. and the lact Propolition.
4. P RO P. XV.
5. In any one and the same sort of rays emersins in ans
6. Anele out of any refractine surface into one and the same
7. medium, the interval of the folloreins fits of easy reflexion
8. and transmission are either accurately or very nearly, as
9. the Rectanele of the secant of the Anole of refraction, and
10. et the secant of another anole, rehose sine is the first of
11. L0b arithmetical mean proportionals, betreeen the sines
12. of incidence and refraction counted from the sine of re-
13. fraction.
14. This is manifest by the 7th Obserration.
15. P RO P. XVI
16. In several forts ofrays emeroine in equal neles out
17. ef any refractins surface into the same medium, the inter-
18. vals of the follorvine fits of easy reflexion and easy trans
19. mission are either accurately, or very nearlys, as the Cube-
20. roots of the Squares of the lenoths of a Chord, rehich sound
21. the notes in an Pisht, Col, la, Fa, Col, la, min Fa, Coly reit h
22. al their intermediate derrees ansaverins to the Colours os
23. those rays, accordins to the Analogy described in the se
24. venth Fxperiment of the second B0ok.
25. Chis is manifest by the 13th and r4th Obserrations.
26. MII 2
27. dac

Cite

Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light, fol. 83. Machine transcription, not an edition: Leibniz Legible (model FoNDUE-GD_v2_ft_Leibniz, run 74). https://leibnizlegible.com/page/1677894601:0259?run=74