Statistics of cooperative extension work.

Statistics for 1915 issued as U.S. Dept. of Agriculture. Office of the Secretary. Circular 47; 1917-19 as U.S. States Relations Service. S.R.S. document 40: 1920/21 1923/24 as U.S. Dept. of Agriculture. Department circular 140, 203, 253, 306.None published for 1916.Mode of access: Internet.Statistics for 1915 issued by Office of Experiment Stations: 1917-1922/23, by States Relations Service