"We have but to compare the States, possessing equal natural advantages, in which the two kinds of labor are employed, in order to decide with entire confidence as to which kind is the more profitable. At the origin of the government, Virginia, with a much larger extent of territory than New-York, contained a population of seven hundred and fifty thousand, and sent ten representatives to Congress; while New-York contained a population of three hundred and forty thousand, and sent six representatives to Congress. Behold how the figures are reversed. The population of New-York is three and a half millions, represented by thirty-three members in Congress; while the population of Virginia is but little more than one and a half millions, represented by thirteen members in Congress. It is the vital sap of free labor that makes the one tree so thrifty and vigorous, so capable of bearing with all ease the fruit of such a population. And it is slave labor which strikes a decadence through the other, drying up many of its branches with a fearful sterility, and rendering the rest but scantily fruitful; really incapable of sustaining more. Look at Ohio, teeming with inhabitants, its soil loaded with every kind of agricultural wealth, its people engaged in every kind of freedom's diversified employments, abounding with numberless happy homes, and with all the trophies of civilization, and it exhibits the magic effect of free labor, waking a wilderness into life and beauty; while Kentucky, with equal or superior natural advantages, nature's very garden in this Western world, which commenced its career at a much earlier date, and was in a measure populous when Ohio was but a slumbering forest, but which in all the elements of progress, is now left far, very far, behind its young rival, shows how slave labor hinders the development of wealth among a people, and brings a blight on their prosperity. The one is a grand and beautiful poem in honor of free labor. The other is an humble confession to the world of the inferiority of slave labor." Equally significant is the testimony of Daniel R. Goodloe, of North Carolina, who says:--