...ide of the continent within the present century,--Florida, Louisiana, Texas, and the entire coast of Alabama and Mississippi; vast regions acquired from France, Spain, and Mexico, within sixty years. Louisiana cost 15,000,000 dollars, when our population was 5,000,000, representing, of course, a burden of 90,000,000 of dollars at the present day. Florida cost 5,000,000 dollars in 1820, when our population ...