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Magnetical Observations Made at the Honorable East India Company's Observatory at Madras Under the Superintendence of W.S. Jacob, in the Years 1851-1855
Madras Observatory (India)
出版Printed at the Lawrence Asylum Press, 1884
URLhttp://books.google.com.hk/books?id=TxVAAAAAYAAJ&hl=&source=gbs_api
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