320 



Bulletin 312 



a 



0) 



W3 



<L) 

 (U 



tn 



^ s 



a o 



•S o 



:! 





> 



o 

 U 



H 

 W 



CO 



1-. 



c 

 o 





-:2 



o 



m 



+-> 



ii 



C 

 <u 

 

 C 



o 



o 



o 



id 



xn 



+-> 



o <u 



(U 



CD 

 +-> 



C 



W) 



W TO 













to 



O 

 o 



00 



On 



On 



oi 

 O 



o 





ID -^OO 00 On O O 00 

 0\ ON On On O On 



ID c<^00 00 CO 00 O 00 

 On On ONOn O O^ 



10 CJOO t^OO 00 O 00 

 ON On On ON O On 



13 



10 rO r^ t^OO l^ O 00 



On On On On O ON 



(U TO 

 Vh O 



o o 



« o 



^ i^ «^ 



O n cs 



NO H-l hH 



c c c 

 \rnn O 



CJ M NO 



nd TI) ^ Td T^ ^ 



000 



rt rt Oi 

 C G c C u 



O O "^-i t^-H u-t 



t/j m 02 



<y (u cj cj 6 



00a 

 oi ct3 03 



:3 3 



=i 3 d 



jsi \n ifi 



000 

 C C C 



.rt.rt § § g 



"-" O CO ■^ i/5nO r^oo 



14 



O) 



> 



o 



03 



A! 

 o 



O) 



o 



t3 



<u 



W) 

 -(J 



o 

 a 



d) 



§ "^ 



xfi o 



1 2 



CO S 



00 *^ 



d'l 



JO 



'o 



-d 



+-> 

 c 



O) 



o 

 c 

 o 

 o 





00 \0 

 On On 



•T3 cU 

 OJ S 



<pq 



