NATIONAL GEOGRAPHIC MAGAZINE 



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S. Newcomb, Mathematics; R. S.Woodward, Mechanics; E-C. Pickering, Astronomy; 

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NEW AND POPULAR SCIENTIFIC BOOKS, 



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The Liquefaction of Oases. Its Rise 

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The Slime Moulds. A Handbook of 

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 A list of all species described in North 

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Handbook of Optics. For Students 

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THE MACMILLAN COMPANY, Publishers, NEW YORK. 



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