PLATE XVIII. 
x 
“i 
fe} 
> 
s 
oO 
fe) 
° 
ioe 
=) 
WW 
z 
WwW 
= 
re 
<= 
load 
<t 
ob, 
= 
fe) 
5 
re 
fe) 
I 
x 
= 
