N. H. EXPERIMENT STATION 



[Bulletin 245 





i) C •-; rt 



OJ o 







a; ci t. o 





;2;^' 



° Co 



c 2 



O OJ 



CL, P. 



bo 



1^ 0,0. 



^ u 



O 



O .-I rH 



.-( O « rH 



NO 



o 



00 



o 



NO to 



CNj in 



.-I O i-H 



NO 



00 



2 '^ 



00 ^ 



On 00 

 On in 





ON ro 



On rt" 



tH On 



00 NO 



NO (M 



,-. o 



On 



O 



00 



o 



rl NO 



CN) tn 



NO NO O 



CM T-H T-l 



NO 



CM 



10 ,—1 

 CN) rf 



13 



V 



'^ V-H "• 



'^ <5 "^ 



O 



Q - 



ii - s 



^ CO 



< m 



m « u 



