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Scientific American 1894-04-21
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Scientific American 1894-04-28
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Scientific American 1894-05-12
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Scientific American 1894-05-19
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Scientific American 1894-07-14
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Scientific American 1894-07-28
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Scientific American 1894-08-04
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Scientific American 1894-09-08
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Scientific American 1894-09-15
977 visits