When nature communicated this vast impulse to human activity, and placed these mighty instruments in the hands of men, she was not unmindful of the extended field for industry which their enlarged numbers and increased energies would require. The plain of the Mississippi, the garden of the world, containing a million of square miles, or six times the area of France, was thrown open to their enterprise. Steam power propelled a thousand vessels through the thick network of natural arteries which in every direction penetrate its vast and fertile plains. In 1790, five thousand Anglo-Saxons were settled in this magnificent wilderness; now their numbers exceed _eight millions_. Australia has opened its vast prairies, New Zealand its fertile vales, to European enterprise. The boundless plains of Central Russia and Southern Siberia, afforded inexhaustible resources to the rapidly increasing Muscovite population; and an empire which already possesses in Europe and Asia sixty-six million inhabitants, can without apprehension contemplate a continuance of its present rate of increase for centuries to come. The Andes even have been passed; the Rocky Mountains surmounted; and on the reverse of their gigantic piles new states, peopled by the Anglo-Saxon race, are arising, and increasing with unheard-of rapidity, in regions rivalling Italy in the variety and riches of their productions, and exceeding it tenfold in the magnitude of their extent. Proportionate to the wants and necessities of mankind, in an age of such intellectual and physical activity, has been the hitherto untrodden fields which the beneficence of nature has laid open to their industry.