Sii/'plement to Nature,' 

 May 31, 1804 



Nature 



/ 



A WEEKLY 



ILLUSTRATED JOURNAL OF SCIENCE 



VOLUME XLIX 



NOVEMBER 1893 to APRIL 1894 



" To the solid ground 

 Of Nature trusts the mind ivhich builds for aye.'' — Wordsworth 



^r 



wi 



M A C M I L L A N AND CO. 



