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A treatise on optics (1839)

Brewster, David, Sir, 1781-1868, Bache, A. D. (Alexander Dallas), 1806-1867 · Philadelphia : Lea and Blanchard · leaf 222

An illustration from A treatise on optics, 1839, leaf 222
and runningup very rapidly, showing more or less ofthe masts at different times as they brokeout, resembling in the swiftness of theirbreaking out the shooting of a beam of theaurora borealis. As the ship continued todescend, more of the image gradually ap-peared, till the image of the whole… … Fig. 131.

Optics

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