Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light, fol. 4

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: 0.92.

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The machine reads it as

2. X (O M S.
3. A Z. I.
4. ITL L. Angles o Incidence, Restexion, and Refraction, lye
5. u one isse same Plane.
6. A X. H.
7. The Anele axton is equal to the Angle of Incidence.
8. A X. TII.
9. IF the refracted Ray be returned directly back to the Point
10. of. Incidence, it sall be refracted into the Line before descri-
11. bed by the incident Ray.
12. A X. IV.
13. Refraction out of the rarer Nedium into the denser, is made
14. comards the Perpendicular; that is, so that the Angle of Refra-
15. ction be less than the Angle of Incidence.
16. A X. V.
17. Fhe Sine of Incidence, is either accurately, or very nearly in a
18. siven Ratio to the Sine of. Refraction.
19. Whence it char Proportion be knoun in any one incli-
20. nation of the incidene Ray, eis known in aIl che Inclina-
21. tions, and chereby che Retraction in aIl cases ot Incidence
22. on che lame retractins Body may be decermined. Thus
23. it che Retraction be made out oF Rir inco Water, the Sine
24. ofincidence of the red Lighe is eo. che Sine oF its Retra-
25. ction 25 4 10 3. IF ou ot Air into Clals, che Sines are
26. 25

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Opticks: Or, A Treatise Of The Reflexions, Refractions, Inflexions and Colours Of Light, fol. 4. Machine transcription, not an edition: Leibniz Legible (model FoNDUE-GD_v2_ft_Leibniz, run 74). https://leibnizlegible.com/page/1677894601:0014?run=74