Abstract
THE illusion described by Mr. Wilson and commented on in an editorial note is anything but a novel one. An apparatus for the experiment was purchased by the Birmingham and Midland Institute, along with a quantity of optical apparatus, from Mr. Robert Addams, in, I think, 1857. Within the last few years I have noticed that the experiment is described and explained in Priestley's “Light and Vision”. I am writing from home, or would give the exact reference.
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WOODWARD, C. An Optical Illusion. Nature 24, 80 (1881). https://doi.org/10.1038/024080b0
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DOI: https://doi.org/10.1038/024080b0
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