Nature, Nov. 27, 1890] 



Nature 



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A WEEKLY ^ ^ ' 



ILLUSTRATED JOURNAL OF SCIENCE 



A 



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VOLUME XLII 



MAY 1890 to OCTOBER 1890 



" To the solid ground 

 Of Nature trusts the mind which builds for aye," — Wordsworth 



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Ronton anb gjeto ||jorI\ 



MACMILLAN AND CO. 



1890 



