n5 

 -P 

 o 



Eh 





CM H 



c- 

 cm 



c 



CO 



-3 



ro 10 co CO ro cm -J- ,0 co O ir\ u^ CO co r- cm H r-l H 

 \s\ J3 ir\ ir\ ^O %J 4>tf r \H H H 



O 



o 



CD 



C-u-N~*iHCVOOiOOOO r JO 0,OHHCO*OCOrHr-lr-Ir-)rH 





& 



■OOOf>O^OW^iT\COCMr-ICM 





p 

 o 

 o 



O CO OsrmOOHOlnONOO'imHmHHN 

 OrHrHOOO-QvO^OOr-lrH 



oo 



ca 



-p 

 p, 



cu 

 en 



JCO >(M vr\H -OOCOOOiOr-IOC^w^CMCMrH 



HHHHHrtri 



Of 



05 



OCO rl CO E> O -s* ir\ CO ^ CM O "A (^ O f\ vO r\ f'N CM 

 CO -.O iO ^* -cf O CO -O -O "APMNHH 

 rH H H rH H 



VO 



fig 



+> 



C 

 CD 



^H 



^ofoooist^oooo(>j>otoor;statao(\^^ociocv 



HHHO(CVO(Oi(N(ncnon(nn>t^>J>t^«A>A^'A>AO-i) 

 CMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCMCM 



CO O 

 -£> i> 

 CM CM 



cfl 

 Eh 



O 



33 



73 

 p 

 o 



Eh 



ns co 



-3 CM 



CM 



HH(N 



HH (\H(VvOrisfO>>iAOiryCOvOHCO 



rl rl C^ P\ < m 



|H^^*OCOOCOC^OCO 

 iH rH Oi CM ^t St 



O -0 



0) CO 

 Q CM 



H CM CM CM ^-tfNOOtOP-O 

 iH H CM CM 



> "^ 

 O CO 

 3 CM 



CM 



HiHHCMCMW^mONvfONCMCM-OH 

 h h en -i -<* F- 



O CO 

 O CM 



H(^rir\tf\C0 O CO CO CM KTNOCO 

 H CM >*sO C^-CO 



P CO 

 CO 



H rH 



COCOSj-irx^^O'P^*^^?^ 1 ^ ? 



rHCMCOU^COOCOiO 

 H rH rH 



iOCV 

 3 CO 

 «< CM 



rHrHCOsO^C-COC^^OOOCOOO 



H rH 



43 



-P 



a 



Co 



VH 



-4 -J 



S-. 

 CD 



CO O CM CO -<t O CO CM^xDCOOCM-^X)CCOCM^£>COOCM 



irvO-O .O OOC- COCOCOCOOOOOOOOOOOiHiH 



r-i H H H rHHH rHrHHiHHHrHrHrHCMCMCMCMCMCMCM 



•a 



13 



