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Collier's 1918-07-27
2636 visits
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Ladies' Home Journal 1918-09
3627 visits
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Ladies' Home Journal 1918-11
7229 visits
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Scientific American 1916-08-12
1998 visits
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Scientific American 1917-06-09
1551 visits
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Scientific American 1917-06-30
1613 visits
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Scientific American 1919-06-14
1942 visits
