28 



:x. II. EXPERIMENT STATION [Bulletiu 224 



o 



a 



08 



CO 





^T3 2 





e3 



g ce H 

 " fe 2 



O h 



O C3 © S^ 



o c c« C 



" /<! -."^ =! 



2io 







^ 13 



^ - O 



U ? 



" J" 2 



S— to" 



c8 ?- a 



2 c tt cs 

 ;^ -da; 



-t^ ^ — ;^ 



lag 



'^ 03 o 



:; pj ^ *^ 



Oj 





o . 



, CD cu 5-S 



^'" £ c S 



0^ ^ .« *^ 



•-•- OS 

 1-1 Cd CO 



bX) S"- 



^"5« - 



l.d 



^ -— r* CO -e 



(Kg -^ C 



Oi r- ° " "* 



M>- o c ;; 



0) n CO 



o o ^ 



K -i^ - '^ '3 



CO w ,Z 



0; bJ3 CO 



S ^ S g - 



•— (P c 'o 



.- 0) f- QJ 



Qj 



«S CO O" 





Qj ex y 

 CO';^ C C 



g-o e St: 

 E-i S >:^ bi 





o 

 o 



13 



d 

 d 

 o 



•^ QJ 



d.-2 

 5^ 



"^ OJ 



'o !^ 



O CO 



o 

 o 



o 



■ d 



• to 



■00 



• 05 



O lO 



d d 



to lO 



O (3> 



o ro 

 d (D 



in in 



o to 



O OJ 



O CO 



o t- 



o to 



O rH 



CO to 



IN <N 



Or-, 



O CO 

 O tH 



CO in 



!ife 



O rH 



o to 

 00 to 



o to 

 o 00 



O Tt 



O IM 



•to 

 ■ d 



■ OJ 



'd 



■ Tjl 



:d 



■ o 



■ to 

 ! oo' 



•Ttl 



■ o> 



O IM 



o to 

 d ■* 

 in in 



o to 



O OJ 



ci -^ 



in in 



o 00 



oto 



d^ 

 mm 



o in 



O CO 



o m 

 a o 



CO '^ 



O IN 



in •> 



-Tji in 



oo 



o CO 



OEn 



O to 



O Tji 



dri 



cb&i 



O Ci 

 O "^ 



t> l-i 



iH IN 



Ofc. 



C3 



-« u 



ea ^ 



QJ "o 



d CO 



§'d 



O c 



CO 



T3 d 



d 



CO 



T3 



d 



53 



d-g y? 



CO 



OT3, 



O d 



O OJ 



5^ 



d 



ti >> " 

 o_aj 5 

 ^"3 CO 



tooD OJ 

 CO 



uj d ° 

 WdSi 



A =*'d 

 O d g 



d§ 



d C3 



f^ ^ to" 



. .2 « 



o =« S 



° >^-d 



QJ CO 



ij d -t: 

 o coco 



S£ 



-02 



■m 



