Page:Spectropia, or, Surprising spectral illusions.djvu/7

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SPECTROPIA;

OR,

SURPRISING SPECTRAL ILLUSIONS.

SHOWING

GHOSTS EVERYWHERE,

AND OF ANY COLOUR.

WITH SIXTEEN ILLUSTRATIONS.

NEW YORK:

PUBLISHED BY JAMES G. GREGORY.

No. 540 BROADWAY.

MDCCCLXIV.

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