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Collier's 1918-07-27
2373 visits
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Ladies' Home Journal 1918-09
3206 visits
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Ladies' Home Journal 1918-11
6526 visits
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Scientific American 1916-08-12
1741 visits
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Scientific American 1917-06-09
1406 visits
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Scientific American 1917-06-30
1498 visits
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Scientific American 1919-06-14
1672 visits
