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 pose, an amount almost equal to that paid for the Louisiana Purchase. In other words, it cost the government substantially as much to make that territory accessible as to purchase it; and what is true of that territory in its larger sense is also true in a small way of nearly every tract of land that is opened up and used for the purposes of civilization; that is to say, it will cost as much to build up, improve, and maintain the roads of any given section of the country as the land in its primitive condition is worth; and the same rule will apply in most cases after the land value has advanced considerably beyond that of its primitive condition. It is a general rule that the suitable improvement of a highway within reasonable limitations will double the value of the land adjacent to it. Seven million dollars, half of the total sum appropriated by acts of Congress for the national road system, was devoted to building the Cumberland Road from Cumberland, Maryland, to St. Louis, Missouri, the most central point in the great Louisiana Purchase, and seven hundred miles west of Cumberland. The total cost