Contents: Cooperative marketing and purchasing by farmers, 1913-1939; Number of associations; Cooperative membership; Dollar business for cooperatives; Cooperative business by geographic divisions; Relative importance of States; Changes in commodity marketing; Cotton and cotton products; Cooperatives handling dairy products; Fruits, vegetables, nuts; Grain, dry beans, and rice; Livestock cooperatives; Poultry and egg cooperatives; Wool and mohair; Cooperative purchasing; Changes during 1938-39 season; Summary.