~ 
72712 
IATURE 
Ae WEEKLY 
ILLUSTRATED JOURNAL OF SCIENCE 
VOLUME XXV. 
NOVEMBER 1881 to APRIL 1882 
“To the solid ground 
Of Nature trusts the mind which builds for aye.’—WoRDSWORTH 
London and Few Jorh: 
MACMILEAN AND: CO. 
1882 
