Bui. 1134. U. S. Dept. of Agriculture. 



Plate 111. 





± "si 



o zis a 



w His ^ 



z = ' 



o 2 



O 2 o ™ 



° fil 



< ~~'c 



2 £;; - 



° 111 



HI c3 O 



O £ 



_J 



Eps 



-,£- 



= 4 



.- oa p< 

 < <= >-. 



! g = 



_: = ^ 



.'-3 P< 

 O 



