1.

図書
図書
1. Sunspot and geomagnetic-storm data derived from Greenwich observations, 1874-1954 : derived from Greenwich Observations, 1874-1954
compiled under the direction of Sir Harold Spencer Jones
出版情報: London : Her Majesty's Stationery Office, 1955
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2.

図書
図書
2. Observations made with the Cookson floating zenith telescope in the years 1927-1936 at the Royal Observatory, Greenwich and the determination of the variation of latitude and the constant of nutation from observations in the years 1911-1936
under the direction of H. Spencer Jones
出版情報: London : His Majesty's Stationery Office, 1939
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