26 



N. H. EXPERIMENT STATION [Bulletin 277 







3 



-a 



c 



C3 

 13 



a 



m 



•a 



'S 



a 



C3 



Q 

 B 



K 



o 



X 



hH 03 



Hi , U 



O Sq 



C 0! 



13 



0) 



la-' 







0) « C3 



4> . 







o . 



i" ° 



2-^ . 



O c ~ 

 03 e 



Cm m 



fe 



.56 



<-=) . 



r. C = 



C cs C 



p 



o 



=§" 



03 





g 03 bt 



oO g 



4) "JO 



C3 



0) J- w 



P. 

 a 

 <u 

 a 

 a 



^< 



#■3 

 o"S 



CO c3 



=8 2' 

 \Z ^ 



03 



PQ 



'OH-l 

 W 



— J3 



'*' ca **' t, 



