Sttturt "I 



March aff, 191 8 J 



Nature 



A WEEKLY 



ILLUSTRATED JOURNAL OF SCIENCE 



VOLUME C 



SEPTEMBER, 1917, to FEBRUARY, 1918 



" To the solid ground 

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





MACMILLAN AND CO.. Limited 

 NEW YORK: THE MACMILLAN COMPANY 



