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Variability of Spectrum Lines in the Iron Arc
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  • Year: 1915
  • Author: St. John C.E., Babcock H.D.
Note on the Pressure and Currents in the Suns Atmosphere
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  • English
  • Year: 1924
  • Author: St. John C.E., Babcock H.D.
The Red Shift of Solar Lines and Relativity
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  • Year: 1924
  • Author: St. John C.E.
Elements in the Sun
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  • Year: 1929
  • Author: St. John C.E.
Convection Currents in Stellar Atmospheres
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  • Year: 1924
  • Author: St. John C.E., Adams W.L.
The Structure of the Atmospheric Absorption Bands of Oxygen
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  • English
  • Year: 1927
  • Author: Dieke G.H., Babcock H.D.