Sup/>leinent to Nature,'] , . _ ^ 



June I. 189;; J // 2 ^ 



Natu re 



A WEEKLY 



n» 



ILLUSTRATED JOURNAL OF SCIENCE 



VOLUME XLVII 



NOVEMBER 1892 to APRIL 1893 



'* To the solid ground 

 Of Nature trusts the viind which builds for aye." — Wordsworth 



^# 



MACMILLAN AND CO. 



