Bui. 29, Porto Rico Agr. Expt. Station. 
Plate III 
o 
CO 
CO 
or 
z 
o 
CO . 
08 
I* 
H DC 
z 
" 
_l 
CO 
o 
DC 
CQ 
CN 
6 
Ll 
CO 
CO 
< 
DC 
C3 
< 
1 
Q. 
LU 
_l 
LU 
ll 
LU 
-■h 
z x 
o o 
CO QC 
CO "- 
< 
DC 
o 
LU 
I- 
< 
o 
a 
Ll 
