A total of 150 million acres of worthless deserts and swamps would be reclaimed and devoted to food production. That would be equivalent to the actual _creation_ of an area of that enormous extent of new lands where none had been before, and these new lands would be the most fertile and highly productive of any lands in the United States. If the annual gross production of the 150 million acres of reclaimed deserts and swamps were put at only $60 an acre, which is a low estimate, it would amount to $9,000,000,000 a year, and _the world needs the food_. The value of all the wealth produced on farms in the United States in 1910 was estimated by the Secretary of Agriculture to have been $8,926,000,000. The application of supplemental irrigation to lands in the United States already under cultivation by rainfall, as is done upon large areas in France, Spain and Italy, would double or treble the production of farm crops on such lands. And if 100,000,000 acres of those lands were intensively cultivated and fertilized, as is now done on much of the land devoted to truck-gardening on the Atlantic coast, the gross food production from every acre intensively tilled in that way can be increased more than $1,000 a year. That would mean an increase in the food supplies of the United States aggregating an annual total of _one hundred billion dollars a year_. These figures look so large as to seem visionary to those who are uninformed as to the facts, but it is only a question of multiplying units of from one to five acres into which the land would be subdivided for tillage by Homecrofters. With a population of 100,000,000 to feed now, and the practical certainty that it will be 200,000,000 in another fifty years, and 400,000,000 within a century, shall we hesitate to train the Homecrofters who would each produce a gross yield of more than $1,000 from every acre to feed our multiplying millions? _If we do not train millions of our people to be Homecrofters and intensive soil-cultivators, how are we going to feed our population when it reaches 200,000,000 or 400,000,000?_ All we need to do, to be sure of having at least 100,000,000 Homecrofters, each producing $1,000 worth of food from a one-acre-garden home or Homecroft, when our population has grown to 400,000,000 within a century, is to graduate 1,000,000 Homecrofters every year from the Homecroft Reserve Educational System as is in this book advocated and shown to be entirely practicable.