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Abstract
With an expected population of 225 million by 1975, the United States will need 7.6 million additional acres for residential purposes, 4.5 million additional acres for industrial sites, more than 2 million acres for additional parks and playgrounds, 19.5 million acres for additional national parks and recreation areas, 22.5 million acres for new schools, churches, cemeteries, and other service areas, and at least 3 million new acres for highways, interchanges, and rural roads.