concentration of our domestic and foreign trade, while traversing the interior of Ohio. If we suppose our foreign commerce equal to one fifteenth of the domestic, we should add to the thirty-three millions of the States and Canadas, upward of two millions of foreigners, to represent our foreign commerce. These should be thrown into the scale represented by New York. This, with the larger proportion to population of industrial power remaining in the old States, would render it certain that the centre of industrial power of our nation has not traveled westward so far as to endanger, for the present, the supremacy of the cities central to the commerce of our Atlantic coast. Until the centre of industrial power approaches a good harbor on the lakes, New York will continue the best located city of the continent for the great operations of its commerce. That the centre of wealth and consequent industrial power is moving westward at a rate not materially slower than the centre of population, might be easily proved; but, as those who read this article with interest must be cognizant of the great flow of capital from the old world and the old States to the New States, and the rapid increase of capital on the fertile soil of the new States, no special proof seems to us to be called for. The centre of power, numerical, political, economical, and social, is then, indubitably, on its steady march from the Atlantic border toward the interior of the continent. That it will find a resting place somewhere, in its broad interior plain, seems as inevitable as the continued movement of the earth on its axis. The figures we have submitted of the growth of the principal lake cities plainly show great power in lake commerce, so great as to carry conviction to our mind that the _principal city of the continent will find its proper home and resting-place on the lake border, and become the most populous capital of the earth_. A full knowledge of the geography of North America will tend to confirm this conviction in the mind of the fair inquirer. The lakes penetrate the continent to its productive centre. They afford, during eight or nine months of the year, pleasant and safe navigation for steam-propelled vessels. Their waters are pure and beautifully transparent, and the air which passes over them exceedingly invigorating to the human system. Their borders are replete with materials for the exercise of human industry and skill. The soil is fertile and very productive in grains and grasses. Coal in exhaustless abundance crops out on or near their waters, to the extent of nearly one thousand miles of coast. The richest mines of iron and copper, convenient to water transport, exist, in aggregate amount, beyond the power of calculation. Stone of lime, granite, sand, and various other kinds suitable for the architect and the artist, are found almost everywhere convenient to navigation. Gypsum of the best quality crops out on the shores of three of the great lakes, and salt