a 2) 5 py" 
ey 2. TE 
~ Nature 
A WEEKEY 
[ILLUSTRATED JOURNAL OF SCIENCE 
VOEUM Eee XVIT. 
NOVEMBER 1882 to APRIL 1883 
“ To the solid ground 
Of Nature trusts the mind which builds for aye.” —WoRDSWORTH 
Vondon and slew Zork: 
MACMILLAN AND CO. 
»QO 4 
1003 
