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New York, 1930
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London: C. Scribner's Sons, 1932
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Washington: Smithsonian Inst., 1917
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New Haven: Yale Univ. Press, 1917
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Washington, DC, 1937 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2007
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Washington, DC, 1935 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2007
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Washington, DC, 1936 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2007
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Duke University Press, 1944
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Duke University Press, 1943
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Duke University Press, 1942
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University of Chicago Press, 1944
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History of Science Society, 1944
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Duke University Press, 1942
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Duke University Press, 1944
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Duke University Press, 1943
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Duke University Press, 1944
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Duke University Press, 1943
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Duke University Press, 1943
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Duke University Press, 1944
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Duke University Press, 1942