94 



BULLETIN 1233, U. S. DEPARTMENT OF AGRICULTURE. 



o 



gg>a 





oo 



OB 

 00 



CN 



o 



c 

 -o 



X 



00 



CO 



O 



3 



CN 



CO 



00 





















w 



co 



09 



BO 

 C 



OP 

 ■rf 



CO 



GO 



CN 



GN 



CN 



C 



cs 



X 



IN 



CO 



gtg^fl 



O 



e<i 



s 



1-: 



0C 



g 



CN 



X 



- 



a a- 3 • § 



CO 



t^ 



o 



r^ 



I* 



s 



IN 



fi 



C5 



- ~. 



^ 



w 



CN 



,- 





.- 



i- 









c 

 ir-i 



OS 





-c* 



o 



c 



CO 



X 



CO 



CO 



CO 



CO 







pH 



CO 



* 



M 



a 



IO 



■Q 



OS 



„ 





o 



O 



N 











O 

 CO 





o 



CN 





- 



co 



CO 



M 





CO 



(N 



Ol 





■<*< 



t> 



t^ 



00 



c 



X 



OS 



OS 



t^ 





o 



to 



CO 



eo 



CO 



O 



o 



% 



co" 



CO 



CN 



d 



CO 





io 



>~ 



CO 



CO 



Tji 



«* 



o 



OS 



O 





u 



— 



c 



00 



00 



IN 



~? 



_J 



00 



r 



CO 





w 



T* 













9 



^J 



pH 



cs 



CO 



<N 



o 



T« 



t^ 



CO 



CO 



93 



A 



CO 





t^ 



t--. 







OS 



OC 





■^ 



a: 



us 



to 



IO 



io 



to 



IQ 



ss 

























O 











































A 





^* 



■a 





'~ l 





OS 



(N 



t- 



__, 





< 



® 



• 0* 



o 



IO 



us 



t^ 



i-O 



gj 



o 



DO 























>, 



eo 



O 



r» 



<# 



CO 



<* 



« 



<N 



_ 



3 



CN 00 



3£ 



COIN 

 weo 



(M00 

 -— 'lO 



(N 00 



<N O0 



CN-* 



CO CO 



CO IN 



d 



OC 



iO 



CN 



IQ 



<# 



O 



O 



to 



^l 



^ 



g 



CO 



■o 



co 



r^ 



j2 



8 



~ 



o 



C5 



•d 

























o 























>> 



pH 



t* 



oo 



fH 



CO 



-» 



CO 



„ 



„ 



>> 



C3 



3 



co 



r- 



>--5 



51 



3 



CO 



x" 



eo 



N 



-g 



o 























*H 



<N 



oo 



■* 



30 



pH 



« 



O 



IO 



CO 





& 









OS 









CN 



CO 





«j 



CO 



*$ 





CO 



CO 



CO 



CO 



CO 





^ 



pH 



IO 



i> 



CO 



IN 



CO 



CN 



CO 



rt 





C3 



CO 



UO 



CO 



CO 





_• 





!N 



00 













CO 



CO 





-; 



>c 



HI 



T* 



es 



■«*< 



o 



PH 



L.0 



OS 





o 



& 









IH 00 



r^ 











" 











CN 





CM 



CN 





OS 



CO 



OS 



O 



X 



.- 



^ 































C3 



NN 









t^. 









^S 















^IN 



— m 



— CN 



ii 



-.coco .; 



esoe e; 



IO ©JS-S^P^^S IO^Sk- -.VSk- «w. 



s ^£ ^.° M ^s^? Sajb ~s>? 



"■' ■ *~ co — ~ i 



~ co 



£2" ' ^3 b^ 



CiCjSIw,^ -0>C >-cc O P»OS O p^S Ih - 



-r 5 -3 



CXO M — 



= C 38] 



O C C£ 



