184 BULLETIN 948, U. S. DEPARTMENT OF AGRICULTURE. 



- 



.9 

 § 



*« 



■d 



<» 



e 



"8, 



.g 



S 



■s 







o 



A U 



£ 



'„ 



~ 



1 



O 



71 





< 



8>a 



X 





w 



~ 



H 



^ 



s 



R 



o 



03 

 V 



ft 



o 



bH 



O 



4- 



"3 

 CD 



IS 



s . 

 s • 



o • 



as : 































-- 



- 



- 























o 



■5 : 

 3 • 

 s • 



o ' 



a, : 











































OS 



CO 



03 

 CN 



6 » 



c£ft 





















" 



- 







- 





- 



















^ H 



1 "~ 4 



CO 



03 



"3 



o 



CN 



to 



03 





8 : 



co en 



O 00 





a; 

 oc 

























o 



IS 



3 



o 

 Bh 



S, 

 S- 

 (N 





r-c» 



CN03 

 CNCN 



CO 

 CD 

 IN 



CO 

 IN 









C-l 



























- 



-: 



S CD 

 CO ft 



' H 







CNi-H 



CO CO 









CO 





























"3 



8 . 

 © ' 















CM COIN 



IN COO 

 C3 030 





re 

 ■ -. 



03 



c 

 o 





T(l 



03 





03 

 03 















o 



s : 



o ■ 



Bh I 





to-* ■ 



CDH • 

 CN CO ' 



— 



OS 



Cd 

 IN 



COOT* 



cor- oo 



(NCNCM 





tF 

 IN 



00 

 IN 





CO 

 CN 





OC 

 CN 





















|H i-H J 



t-r-HiH 





o» 



CO 





CO 





CO 















00 



5! 



03 



"3 



s : 



© * 



a, : 















83 



coo 







K 

 OB 



Hi-O 

 CNf-O 



OOIO 



C-) 



oo 



-r 



OS 



■-I 00 



03-* 





" 



o 

 l> 



03 



CO 

 <N 



3 



s . 



3 • 



o ' 

 Bh : 















<N03 



ooao 



CNCN 







CO 



K 

 C-4 



■*■* 



CO CO 

 CNCN 





CN 



TH 



CN 



CNtH 

 COOO 

 CNCN 





a © 

















CN.-H 







CO 



r-J tH iH 





«* 



COi-H 







T* 



o> 



OS 



"3 



CD 



**3 '• 



s . 

 3 • 



© ' 



Bh I 















CO 



o> 



O O 

 00 OS 



— 



COCO 

 CC3 









o 



CN 



o 



H00O 

 T* t* ^H 



o ~. ~ 





CO 



CO 

 03 



o 



3 * 



o ' 



b, : 















03 

 IN 



r-oo 



O oo 

 CO(N 



CI 



iraco 



T)HlO 



CNCN 









OS 

 T* 



IONN 

 t~C33 1-- 

 CNCNCN 





CO 

 00 

 (N 



S CD 

 CO ft 

















IN 



tH 





CN^-I 









CO 



Ot*CO 





CN 



03 



<0 



bo 



2 1 



> o 



1:3 n-l 



"3 



s . 

 3 • 

 o * 



Bh I 



CN 



03 









S 













113 



CO 

 03 















lO 

 CO 

 03 











o 



1 : 



3 • 



o • 



a, : 



00 



Ol 





















in 



00 

 CM 















C7> 

 US 

 CN 









- 



" 



■O 

 I— 



CN 



CN 

 IN 



Sess 



£8ft 





H 









"5 













OS 















CO 











a 

 o 



a 



•a 



S 



p 

 o 





s 



Is 



to 

 bo 



a 

 u 



< 



I 

 I 



; • ( 

 Bo 



w 



I 



c 



CD 



3 

 s 



£ 



a 

 t 



a 

 b 



< 



I 



U 

 



c c 



si 



Sec 



s 



1 



■c 



c 



(- 



| 



e 



a 



P 



a 



J 





a 



b 

 Oi 

 t 



a 

 b 



< 



) 



U 



a. 



A 



..E 



a - 



s 



i 



c 



-- 



C 



a. 



£ 



I 

 c 



iz 



! 



c 



e 



- 



£ 



c 





a 

 E 



\ 



< 







SE 



■g c 



w 



1 



|Z 



P 





CD 



DO 



e 



> 



■4 



