102 MISC. PUBLICATION 434, U. S. DEPARTMENT OF AGRICULTURE 



a a Sf* 



m • co £ *- 

 §^££fe 



-5 <~ 53 CD l> 



C fa >^ 



. P 3 CO o 



T3 =9 O >> w 



£-3 







. . o 



CD C 



js.S 3 



2 l- CO 



■o ° era is 



CO P^Otj^ 

 ^-^ CN 



_CO S-. *? 



bJDT3 » 

 <« o K CO 



4^ cn 



Iff* 



• C3"S« fa 



tr-i b m 3 



'*- * 2 >> " 

 g .a £ ce fl 



S a & 



co ^ w 



£ as 



co^ o 





03 3 



gill 



.~± hr mi 





CO 



CO 





" -d .fa ^ c 



n 00 H g g o g 03 g>*g 



fa, SaUrt C8 ? m o g-g 



3 2 = 



s- fa 





»S*8*"j 



03 g.^co^w g co-. 

 WOQ GO 02 rt 



O C„ Sag*" 



>> ^ 'g ^ W § 

 T OT be . '-3 

 5. 00 - ri "S co « 



: as a 



Bt; OD faa awoB is™<^ 



Sif'Sf ^ii|s 



c.Cj .sr^c~ B 3 



"ofaCP c >co---'C.Sco 



s Sg 5-2 gg ^>3 



fan ^ m P 



— D.1 



.fan -K © g 



Pi" b £ 



1§11 I * 



"flS? .5 c 

 -wo,.— fa 



© »:£ *- o 



111*1 -I E 



a-a ^ E c g „ 



Cv-r C 00 >>& -^ 



S 5 3 2 & b S"- ts M 

 Pfecr°c>goc. 



P3 £ 



1| !■§ 



feed fe 



§ e 



■s ^ 







!^o 

 +5 a 



.2-2' 



10 00 



t^ in 



coci 



^ 'f "] 



10 >c 



CM I 



o -* 1 



r^ ^ 



J: J, 



lO CM 



53 a 



> 10 «o 10 >o 



ON CM CN 



.fa © 



' a "a 



> W>gS g co 



^j C3 oj CO rt J3 



$9 



8 8 



CO CO 00 00 >o 



ii Ai i 



irj •* iC Tti CH 



.S.5 



0QCQ 





^3£ 



S5 



CD 



;/- « 



co o 



CO o 



II 



o >> 



St 



co ft 



