,%.o] 



Nature 



A WEEKLY 



ILLUSTRATED JOURNAL OF SCIENCE 



VOLUME LXXXII 



NOVEMBER, 1909, to FEBRUARY, 1910 



" To the solid ground 

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



MACMILLAN AND CO., Limited 

 NEW YORK: THE MACMILLAN COMPANY 



