



X! 





1) 



'n 









C 

 re 



o 



re 







3 



i 



w 



s 



H 



i-m 





'J 



<v 



-a 



to 



o 



OJ 





5/5 



O 





o 



c 



a 



3 



o 



_o 

 JZ 



5 



re 



-o 



re 

 "re 



OJ 



c 

 re 



_re 



3 

 00 



c 

 re 



c 



• - 





_2 



OJ 



O 







O 



5 



^ 



i-^ 



> 



C/5 



<: 



> 



o 

 'G 



c 



u. 

 -5 



> 



O 



c 

 ■o 



are all triang 

 is round and 



C 



<u 

 ;- 

 O 



;- 



re 

 lU 



a. 

 a. 

 re 



H 



O 



'> 



1/ 



re 



Q. 

 3 



Q 



re 



Hi- 

 re 



C/5 



C 



o 



5 



l-l 

 O 

 JZ 



D- 

 re 



OX) 



c 

 c 



OJ 

 T3 



(J 



OD 



1* 



re 

 > 



'? 



o 

 > 



o 



5 

 a. 



3 



Tiiner.) In profile, the 

 appear to be about the 



> 



c 

 c 



k^ 



oc 



C 

 _> 



re 



U 



re 

 re 



1 



-o 



>~ 



re 



1 



1/ 

 o. 



3 

 O 



O 



o 



C 



c 

 c 



"3 

 c 



■0 

 J2 



re 



3 

 OC 



c 

 re 

 i— 



i) 



Cl. 



a. 



— 

 re 



;« 



C 



o 



-o 

 c 



3 



o 



o 

 re 



!/5 



re 



-5 

 S 



c 



o 

 '^ 



G 



1 



"re 



-o 



C 

 re 



i-T 



re 



re 



-o 



re 

 L. 



c 

 aj 

 u 



"G 



-o 



C 

 3 

 C 







v5 

 O 



c/5 



'rj 



re 



O 

 3 



c/5 



o 

 1) 





O 



_4> 



£ 



I/) 

 c 



O 



_c/5 



G 





3 

 00 



c 

 re 



c 

 o 





tlH 



> 



c 



^ 



re 



-o 



u 

 re 



C 



re 



X 



3 

 c/) 



_c 



D- 



_o 



.£ 



L> 





-o 



11-29 



