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REFINE  Browse All : Astronomical observatories and Astronomy--International cooperation 1-4 of 4 narv_robertsWalterOrr_6... [Letter to Miss McAllis... Roberts, Walter Orr   Media item filename narv_robertsWalterOrr_699.pdf Title [Letter to Miss McAllister, James Foundation] Name Roberts, Walter Orr narv_robertsWalterOrr_0... Instruction Manual for ...   Media item filename narv_robertsWalterOrr_064.pdf Title Instruction Manual for the Observations of Surges and Active Prominence Regions narv_robertsWalterOrr_3... Instructions/IGY Solar ...   Media item filename narv_robertsWalterOrr_308.pdf Title Instructions/IGY Solar Patrol Sheet/Daily Coronal Report narv_robertsWalterOrr_3... Recommended Plan for th...   Media item filename narv_robertsWalterOrr_306.pdf Title Recommended Plan for the Centralization of Solar Data during the Geophysical Year 1-4 of 4

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