List of solar activity observations to be made in Britain; typescript re the need for a Lyot ha Heliograph near the Zero Meridian; correspondence re centralizing data and dealing with it-along with a Recommended Plan from the IGY; typescript note by Lovell (1958) on the analysis of 80 Mc/s and 200 Mc/s solar noise records; Instruction Manual Solar Activity by Yngve Ohman.
IGY Solar Activity
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- ReferenceGB 133 JBA/IGY/7/5
- Dates of Creation1954-1959