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Sigma Xi, The Scientific Research Society Sigma Xi, The Scientific Research Society http://www.jstor.org/stableYour use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, avail
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Document Date: 2013-09-02 15:04:12
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Sigma Xi, The Scientific Research Society Sigma Xi, The Scientific Research Society http://www.jstor.org/stableYour use of the JSTOR archive indicates your acceptance of the Terms & Conditions of Use, avail