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By: Dalton, John P. (John Patrick)Type: ArticleIn: Transactions of the Royal Society of South AfricaVolume: 4Series:Issue:Date: 1914Page Range: 123--136Publication Info: Cape Town, Royal Society of South Africa,Subjects:
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By: Dalton, John P. (John Patrick)Type: ArticleIn: Transactions of the Royal Society of South AfricaVolume: 9Series:Issue:Date: 1921Page Range: 223--228Publication Info: Cape Town, Royal Society of South Africa,Subjects: