Abstract
THE illusion of the inverted pin was shown me about the year 1846–47, and I well remember, when I was at Cambridge, working out the explanation inductively. In the autumn of 1847 I was spending an evening with Dr. P. M. Roget, at his house in Woburn Square, when among other subjects we conversed upon was that of optical illusions. The inverted pin was one of his illustrations, and I think he mentioned having explained it in some scientific serial.
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INGLEBY, C. An Optical Illusion. Nature 24, 165–166 (1881). https://doi.org/10.1038/024165d0
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DOI: https://doi.org/10.1038/024165d0
