The Wonders of Optics

by Fulgence Marion

The cover image was created by the transcriber and is placed in the public domain.

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THE WONDERS OF OPTICS.

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Spectrum showing the absorptive power of Sodium vapour (Fig. 6).

Solar Spectrum (Fig. 5).

Action of a prism on a ray of light (Fig. 7).
Eng.^d by A. Robin N.Y.