THE AMERICAN FARMER LEADS.American fanners are the most efficient in the world.The United States leads the world in the development of agricultural machinery.From 1910 to 1920 American farm labor increased in effic-iciency 22.5 per cent The volume of crop production increased 11 per cent.These figures are from the survey of the National Industrial Conference board. They don’t offer the American farmer any relief, but—They do offer every American—farm man and city man—a good degree of satisfaction.