16 



N. H. Experiment Statiox 





7 



2 <u 





c 

 _o 



■*-» 



0) 



C 



a 



u 



o 



Oca 



c 



3 

 O 



Oo5 



.-H M 00 



50 M 

 CS 00 





t- 00 



o 



00 



00 



00 



U5 



73 



W 



W 



W 



w 



M 



w 



M 



m 



m 



w 



05 

 CI 



C5 



O 

 00 



in 



o 



oo 



05 



C5 





M 



02 



m 



m 



W W M 



72 72 



72 



w 



ID 



c3 

 (1) 



a. 



ce 

 o 



c 



c 

 C 



a 

 m 



1-H 



tT - 



^< 



to 



o 

 a> 



o 



oj ^- 



c 

 5 



3 



0) 



m 



c. 



O Qi 

 00 1^ 



'-'' C . 



mf^ CU 



> .-r 



— c S 



o 



CO 



d - 



CO 



hg 



01 



c 



72 



CO 



C 



-.2 



c^ 



00 



o 



CO 



t- 



lf3 



in 



o 



o 



CO 



oo 

 in 



oo 



n 



M 



0) 



u 



•a 



^^ 

 1° 



®o 



E 



