Public Document No. 31 



TWENTY-FOURTH ANNUAL REPORT 



OF THB 



MASSACHUSETTS AGRICULTURAL 

 EXPERIMENT STATION. 



Part II., 



Being Part IV. of the Forty-ninth Annual Report of 

 THE Massachusetts Agricultural College. 



r 



January, 1912. 



BOSTON; 



WEIGHT & POTTEE PEINTING CO., STATE PEINTEES, 



18 Post Office Squaki. 



1912. 



