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Transactions of the Royal Society of South Africa Volume 4, 1914 - Issue 1
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Original Articles

TRUE ISOGONICS, ISOCLINALS, AND LINES OF HORIZONTAL INTENSITY FOR THE NORTH-WESTERN PARTS OF THE UNION OF SOUTH AFRICA AND FOR PART OF GREAT NAMAQUALAND FOR THE EPOCH JULY 1, 1908

J. C. Beattie D.Sc. South African College, Cape Town
Pages 57-63 | Published online: 26 Mar 2010
 
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