e BOD At 
Vature 
Nature 
x WEEKLY 
[LLUSTRATED JOURNAL OF SCIENCE 
VOLU Mine LX Xv 
NOVEMBER, 1996, to APRIL, 1907 
“To the solid ground 
Of Nature trusts the mind which builds for aye.” —Worvsworti 
\A elie 
# ondon 
MALG MULE AUN. A N@@eseO:. Sea’ kr ED 
NEW YORK: THE MACMILLAN COMPANY 
