Xll 



CARNEGIE INSTITUTION 



3 

 o 



g 



in 



o 



ff 



00 



•I 



S 



O o 

 M o 



w -^ 



S 



O 



55 

 O 



i-i 



P 



hi 



xn 



iz; 







s 



p) 00 



O <N 



o 



o 



o 



if) 



o 

 u 

 a 

 i) 

 v> 

 <u 

 u 



O 



IS 



"3 









- o 



O Vh 



o 



IT) 



c^ 



n S 



4J O 



t^ 5 (s w 



cs o 

 01 5 



coco CO 



- - ON^ ro 

 M PO C^ (S l-l 



ON O 



CO Q\ 



rO UD On 

 On uo r>- 



fO 





5 



oo 



fO 



fO 

 fO 



N P< CO N rO 



o M o >sO r^ 



rO t^ ■* fO 



. Co —I 





41 3 

 I- 



<u 5 



in ™ 



03 . 



^3 aj 



4-1 V-i 



O U 

 <" r-O 



SSI 



(U H_ <*-! +J 



■ (U 



• o 



. o 



I'd 

 . a 



pi 



2 O 



c 



tn 



03 



<D 



&I03 



„ t>, o 6 '-3 ^ 



r2 I^ (u <-( ™ 03 



t^ i' ij P -^^ 



to Ph Pti P-i C/3 





03 



M d m (u 



<U 5 rt Q 



1 n! 



O 5 



(2 j^§ 



Vh M Vh 



o o o 



03 



<U 

 )-( 



U 



o 



03 



c 

 o 



J2 



01 





cO'°^ 



".el 



ro*^ aj o 

 V.CO BO 



a) 



01 00 « 



IL) f3 fl 



pq 



o 



8 



<3 



O 



s 



< 



CO 

 c^ 



h-t 



00 



oo' 

 o 



o 



o 

 oo" 



45 

 ft 



u 

 a; 



P«i 



M M to Q *-< ^ 



O On N O N fO 



0\ \0 On On t^ lO 



o •• 



C.9 a 



rt 03 g 



pq aJfa 

 o 



Pi 



