Annual Meeting. American Geophysical Union // American Geophysical Union ; 25

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Transactions of the American Geophysical Union Tenth Annual Meeting, April 25 and 26, 1929 and Eleventh Annual Meeting, May 1 and 2, 1930

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Annual Meeting. American Geophysical Union // American Geophysical Union ; 46

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Annual Meeting. American Geophysical Union // American Geophysical Union ; 45

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Annual Meeting. American Geophysical Union // American Geophysical Union ; 15

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Annual Meeting. American Geophysical Union // American Geophysical Union ; 49

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Annual Meeting. American Geophysical Union // American Geophysical Union ; 4

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Annual Meeting. American Geophysical Union // American Geophysical Union ; 54

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Annual Meeting. American Geophysical Union // American Geophysical Union ; 37

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Annual Meeting. American Geophysical Union // American Geophysical Union ; 12

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