®I)C Qlommoniocaltl) erf iHassacljUBCtts, 



STATE BOARD OF AGRICULTURE. 



CIRCULAR No. 36. 



January, 1915. 



Factors Affecting Economical Milk 

 Production. 



By Professor C. H. Eckles. 



From the Sixty-second Annual Report of the Mas.sachu.setts 

 State Board op Agriculture. 



BOSTON: 



WRIGHT & POTTER PRINTING CO., STATE PRINTERS, 



32 DERNE STREET. 



1915. 



