EXPERIMENT STATION BULLETINS. 



467 



HO 





8 



o 





pq 



3 

 O 



.f>. 



■s 





o 



pq 





.s 



G 



t5 



-3 





■* ^H 



CO ^H 



00 



-H M 



O 



or 



C<3 



IS 



8i 



8 



-** GO '— « 00 

 CO -^ PC t-* 



CO 



CO 



he 



a 



C-l « 





CO CO »-H .-< 



o 



» 



o 

 o 

 o 



g 



o 



