20 



N. H. Agricultural Experiment Station 



•b 'o •© >3 b -b 'o 'Q "b •© \> *o •© ^ 



*0 'O lO^O "D '6 'O 'Q *0 t> •© "O lO 'O 



= oo»eof^«)in'^<*)'^J— T<^ 



XI3HN3dHVJ S33d03a 



