Agricultural Publishers Association Records, Series No. 8/3/80, Box 11, Special Bulletin No. 82. 2 pages., Shows combined circulation, line rates and millini rates of 35 farm papers, 1921-1930. Circulation grew from 7,189,905 in 1921 to 11,931,921 in 1930. Line rate rose from $48.34 in 1921 to $66.01 in 1930. Milline rate is line rate divided by circulation and multiplied by one million.
