Miscellaneous Pub. 61, U. S. Dept. of Agriculture 



PLATE 11 







«■« 





-'VX^-v-f --;- ■ - 



~ v r* '- •■ 





5 









Pi * 



■ ♦ ■ *}/-. 



&l : 



u 



:■*'- 



»£ ?* 4 ,1 V: J 



", _— . >, - , : 



S^ ■*• '^^-- . 



< 



. © 



fco> 



xs 



H 



§£ 



< 





h 



CO © 



z 



< 



©ft 



■a cs 



£S 



j 



EL 



© ^J 



>■ 



1-2 



a © 



< 



cs.s 





d 



CO 



II 



< 





=3 33 



Z 



w c3 



5 8, 



CL 



_o 





Q M 



Ld 



...9 



h 



bio'S 





C 



I 



1- 





■J3 © 



Q 



"^5 



z 

 < 







o 



LJ 



© . 



J 

 0. 





< 



5 5. 



2 



2-° 



K 





< 

 



, © 

 3 m 



3 



I!- 



U) 



z 



m^ u 





■a © 







z 





z 



pi 



z 



>>© a 





to«g 



I 



NMtj 



h 



g^.s 



J 

 < 





h 



z 



bS|"g 



IU 



2 



■3*8 



a m © 





.— — 1 w 



a 



5 © 2 



in 



a. 

 X 



© C.3 



lii 





■gSto 





= -r c 





iSi 







c3 c3 © 









M CO ^j 





©ZL 



2©o 





? — :=. 





©c-v 





>>oo 





83 § 











Ch w-w 





< 



