Nature, 1 

 December 14. 1905J 



Nature 



A WEEKLY 



ILLUSTRATED JOURNAL OF SCIENCE 



VO LU M E LXXI I 



MAY to OCTOBER, 1905 



" To the solid ground 

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





Itontion 

 MACMILLAN AND CO., Limited 

 NEW YORK: THE MACMILLAN COMPANY 



