24 



BULLETIN" 697^ U. S. DEPARTMENT OF AGRICULTURE. 



'c o S^ 



1 



03 



03 42 







: 



1 



: 



; 

































"o 



> 



^1 

























i 









1 























w 







omcooM 



c 



o t^or~o 



CD 1 





cor- 



Q 



13 



i^'S 





ocomocc 





CO COOCDO 







coco 10 



!2; 



CO 







O CO .-i t-J -^ lO 



(N 



ocoor-icocd 



ei • 





Tj3 CO ^ 







S^ 





•ra 00 to CO CO ir^ 



o- 



T-l tH o CO CO CO 



• 















to CO.-IC<l(N 



es 















0) 



3 ffi 





















1 



1* 















































] A 





tvj O OJ C5 CO t^ 05 



If- 



^ ^a3-*e^co 



t^ 













r] 





O ""^ 



















■go 





^4.i^cJ^J=J. 



eo II 00 4< "-H CO lo eo 



ci 













■* 



!? 





^OOt-h -^rt IMCO 





CO rH rt 















(N 



^ 





K^ 





1 















1 





C^lOO CDOCD 



N t-OO^-H C0O3.-I 



CC' 















|i 





CO ^ IMCq 



CO II r^ ^ 

























































CO 







woor-coOMira 



Wll t^COiOr-IIr^O 



CD 



















O *"* 





















[3j 





L 1 J. 1 1 1 



?3II d.o^icJ.d>^ 



oo' 















'S 





^CO ^ (NN 





1—1 I— I 

















^ 





1-1 





















. 





■* T-H 00 -* 00 00 



a \ lo CO -H CO CO ir~ 



CO 















1^ 





CO i-H CO i-l CO CO 



CO 1 i-lrt,-l CO 



•— < 













00 









i 



































"* 







tv^ r^ t^ CO oo c<i lo 



lOll 050-*COC<1U5 



02 















1 



























• lA -J ub (M r^ «) 



Sll J.4.ici,J.ci 



^ 















S 





^CO-HCO-ICOCO 





rt^i-H CJ 

















^ 





^^ 





11 















1 





tH CO CO ^ 1-1 ■-( 



lO 05T-I tPCO— It^ 



^ 



















CO coto e^ CO 'i* 



CO 11 l-<C0COrHCJ.-H 



c» 













■^ 









1 

































CO 







M— <C^Or-l C^ lO 



CO II co^^coocco 



CO 









































• OS ^ lo o r^ o 



CO II oocncicioco 



d 















© 





^NCJiOC^'MCO 





1— i T-H CO 1— ' 1— 1 I— 1 













" a> 





^ 





»^ 

















w 





1 





lO CO 00 <0 00 .-H 



»0 CD CO >-H 00 --H CO 



CO II i-iTtiTjirtcqco 



03 













3 © 

 1-° 





tM(MO^ <M»0 



c^ 













s 









11 













^ 





t,; CO 00 ■* CO O CO 





5] ^10C0C5.-M03 



CO 







































M 





i^^l^i?^^ 



Sll 4rl4-cJ=ri^ 



^ 















'S 







T-H COCO'-frt C5 

















^ 





i~:i 



















1 





OOr-lOOJCO CC 



col Ot~C002C000 



lO 















1- 





CO-* cocoes 



CO II COlOiOCOC^rt 



CO 













o 









1 





















n 





















tsj 00 C^ CO lO 00 o 



■^ n OC<li-I^COCO 



CO 















-a 





O rH 





















§ 





- • CD »0 O O CD CO 



Sll cioL^Aot4 



CO 















a> 





^ (MCOC<lrtC^ 





.-H ^ -* CO .-H ,-1 

















^ 





►q 





1 













;-^ 



S t: 





CO t^ t^COOSIV 



^ oscDOiOicqio 

 t~- 1) CO r^ CO CO ■«T »o 



CO 













© 





C^Oi t^ "* ■* "* 



^ 















3 © 









COr-H CO 















C3 



a 









1 













^ 





N CO lO CD -* Cq CO 



lO II 00C0tHcO-*O 



■* 













C3 



^ 





0»-l T-H r-H 



















% 





^ 00 ot) i CO <i CO 



^ II Oi 00 Js t> lA 03 



00 













?H 



'S 





^ T-H CO "O 00 CO CO 





^^00 -.CO CO 















Bu 





1-f 00 (N GCOOO 



o r~^oit^^ CO 



's 



coi^c: 



:^ CO 









C^ Ol CO ^5^ ^ lO 



M^cocqcsN 



lo T(i CO ro r-< lo CO 







oco t^ 







3 m 





CO r-no cq CO --1 >-l 



CO 



CO 







. 



1^ 









II 











'^ 





















■8 



^ 





f-i C^ CD O <N lO ^ 



lo 11 r-cocDcocoo 







CO 01- 



HCO >o 





Eh 



^ 









. 











M 





°,k4'Z2j.'X 



2 II ^c^4.rloki 



s' 



J,^o 



a ^ 







"S 





^og^sSSSS 













^ 







II -^"""^^-^ 







1 









^ 































•1 





i 



i 





























^i 





cT 

















i iMMN 

















M 



60 















s t3 



« 







'. '. 





li 





^ 



o 















bjO c3 



2 fe : ; : ; ; ; 



tuO 



i i 







; : 2 









2 















s _" 









. . <£) 





0) cS 





d 



^ d r-i CO CO ■* u- 





> T3 



Z, t-O-HCJCOTPO 





^S ^ 





■^'d 





^; 



h^05 Oi O Oi Oi ^ 





r^ 05 c:i 05 CI Ci 



1101 















g"' 







o3 





Eh 





OQ 











rt 





m 

















« 











































