18 



N. H. EXPERIMENT STATION. 







o 



.2 o 



HH CO 



CJ 



T3 



H ^ "^ 



02 r3 



d a; 



u 



O o 



• 1—1 



o 



O =3 



o 

 o 



C3 





C C3 



■T3 



W 



T3 



OcrjO-HOOOOiHOO^t-MOiHOOTH 



■* O O CO •* 



iHtHtH T-HfH COiH "^W 



1 O iH tH Tj* lO 



iMCOrHCOOoO-^OOOCcOOOOOOOrHOO 



