0000C0C00000O^CT*O^G^ 



I I I I I I I I I I 



000'^fOroOvDCNvDO> 



rH r-l iH CM -H (N ^ 



I I I I I I I I I I 



ccccccccc c c c 



333333:33:3 333 



Ai ^ ^ a; AJ ^; >; >: >; xxx 



WW(/1C0WC/3C/3U)W www 



4J +J -P -U -P -P 



(d ftJ (d n3 fd fd 



cQ m P3 m 03 tn 



0) 



§ 



-P (0 



tn .-H 



5 3 



o o 



■H (U -H 4-1 .H m 

 ■H O -H 3 (U ■■H 



ffi cu ffi u l>< 2 



-p -p -p 

 fO (t3 (d 

 CQ m CQ 



IT3 ^4 



> (U 



(d ^ 



Oi w 



K Q ffi 2 CQ 



4-1 fd 



4-1 q Cn^ w 



q -H q >^ q X 



q; o >, q dj dj i-i 



as 'H q ^ N (d 



u) [m >i q -H a, 



w -a rH (u QJ w 



V4 rH t. -H 15 



M fd QJ 15 ^ 



Q) q q ^ q 



g M O 4-1 0) ^4 fd 



-H Q) tH O O fd V4 



W CQ i-J h) h) U t< 



q in 



O Q) 



in 4-) 



-< ,q 



u u 

 w 

 ,q 



4J n-l 



■H 3 



Q) fd 



1^ O. 



q 



•H ^ 



O H 



S Cm 



in 10 



CD . 

 >xi in 



M ^1 



<u a. 



Q) C 



4-1 -H 



(U Q) 



w in 

 fd 



TJ (1) 



0) in 



4-) •r4 



o Ti 



Q) 



.-H 0) 



'-^ ^ 



O 4-) 



u 



(0 0) 



jd a 



5 o 



r-l 



C QJ 



O > 



in QJ 



X -a 



O U 



fd C 

 )-i 



,C o: 



■P C 



18. 



