So i^ i . 3 iö y yi'L L 
i- 
Q49 
.B3S6 
* 
r 
FOR THE PEOPLE 
FOR EDVCATION 
FOR SCIENCE 
LIBRARY 
' OF 
THE AMERICAN MUSEUM 
OF 
NATURAL HISTORY 
nSat 
* N.ILf 
1911 i 
