REFINE
Browse All : Astronomical observatories and International Geophysical Year, 1957-1958
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narv_robertsWalterOrr_154.pdf
Title
[Letter to Dr. Harry Vestine, from President Ward Darley]
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narv_robertsWalterOrr_064.pdf
Title
Instruction Manual for the Observations of Surges and Active Prominence Regions
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narv_robertsWalterOrr_308.pdf
Title
Instructions/IGY Solar Patrol Sheet/Daily Coronal Report
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narv_robertsWalterOrr_306.pdf
Title
Recommended Plan for the Centralization of Solar Data during the Geophysical Year
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