To obtain accurate and reliable information regarding the labor and material requirements of farms in central Kansas and the relations between their crop and livestock enterprises, an intensive study of the organization and operation of a number of representative farms in McPherson County, for the years 1920 to 1922, inclusive, has been made. The farmers who businesses these figures represent supplied the data. The information thus acquired forms a basis for judging the desirability of different combinations of enterprises, determining those combinations which should prove most profitable under varying price relations, and indicating ways in which efficiency in the various operations may be obtained.