Public Document No. 31 



TWENTY-EIGHTH ANNUAL REPOET 



OF THE 



MASSACHUSETTS AGRICULTURAL 

 EXPERIMENT STATION. 



Parts I. and IL, 



Being Parts III, and IV. of the Fifty-third Annual Report of 

 THE Massachusetts Agricultural College. 



January, 1916 



Ending the Thirty-third Year from the Founding of the State 

 Agricultural Experiment Station. 



BOSTON: 



WEIGHT & POTTER PRINTING CO., STATE PRINTERS, 



32 DERNE STREET. 



1916. 



