/t^ 



■i A 





NATURE 



A WEEKLY 



ILLUSTRATED JOURNAL OF SCIENCE 



VOLUME XI. 



NOVEMBER 1874 to APRIL 1875 



" To the solid ground 

 Gi Nature fnis/s ihc mind which builds for aye." — Wordsworth 



bonbon anb |lcto ^Jork: 



MAC M I L LAN AND CO. 



1875 



