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By: Mackie, T JType: ArticleIn: Transactions of the Royal Society of South AfricaVolume: 8Series:Issue:Date: 1919Page Range: 59--71Publication Info: Cape Town, Royal Society of South Africa,Subjects:
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By: Mackie, T JType: ArticleIn: Transactions of the Royal Society of South AfricaVolume: 10Series:Issue:Date: 1922Page Range: 289--298Publication Info: Cape Town, Royal Society of South Africa,Subjects:
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By: Mackie, T JType: ArticleIn: Transactions of the Royal Society of South AfricaVolume: 9Series:Issue:Date: 1921Page Range: 315--366Publication Info: Cape Town, Royal Society of South Africa,Subjects: