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Collier's 1918-07-27
2375 visits
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Ladies' Home Journal 1918-09
3234 visits
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Ladies' Home Journal 1918-11
6544 visits
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Scientific American 1916-08-12
1742 visits
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Scientific American 1917-06-09
1413 visits
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Scientific American 1917-06-30
1499 visits
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Scientific American 1919-06-14
1680 visits
