NA TURE 



\April i, 1880 



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*'l have to acknowledge a great^amount of very useful advice and assist- 

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1 improving this work in every possible way." — Extract 



COAL : ITS HISTORY AND USES. By Professors 

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ELEMENTS OF COMPARATIVE ANATOMY. 



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CONTRIBUTIONS TO SOLAR PHYSICS. A 

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STAR-GAZING : PAST AND PRESENT. By J 

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