Sunspot and geomagnetic-storm data : derived from Greenwich observations, 1874-1954 / compiled under the direction of Sir Harold Spencer Jones.

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Bibliographic Details
Corporate Author: Royal Greenwich Observatory
Other Authors: Jones, H. Spencer (Harold Spencer), 1890-1960
Format: Book
Language:English
Published: London : H.M. Stationery Off, 1955.
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Description
Physical Description:viii, 106 pages : illustrations ; 31 cm.