1790 61,227, a wilderness. 1800 180,612, 45,365 1810 325,950, 230,760 1820 437,585, 581,434 1830 522,704, 937,903 1840 597,570, 1,519,467 The representation of the two States in Congress, has been as follows: 1802, Kentucky 6, Ohio 1, 1812, " 9, " 6, 1822, " 12, " 14, 1832, " 13, " 19, 1842, " 10, " 21, The value of land, other things being equal, is in proportion to the density of the population. Now the population of Ohio is 38.8 to a square mile, while the free population of Kentucky is but 14.2 to a square mile--and probably the price of land in the two States is much in the same proportion. You are told, much of the wealth is invested in negroes--yet it obviously is a wealth that impoverishes; and no stronger evidence of the truth of this assertion is needed, than the comparative price of land in the free and slave States. The two principal cities of Kentucky and Ohio are Louisville and Cincinnati; the former with a population of 21,210, the latter with a population of 46,338. Why this difference? The question is answered by the _Louisville Journal_. The editor, speaking of the two rival cities, remarks, "The most potent cause of the more rapid advancement of Cincinnati than Louisville is the ABSENCE OF SLAVERY. The same influences which made Ohio the young giant of the West, and is advancing Indiana to a grade higher than Kentucky, have operated in the _Queen_ City. They have no _dead weight to carry_, and consequently have the advantage in the race." In 1840, Mr. C. M. Clay, a member of the Kentucky Legislature, published a pamphlet against the repeal of the law prohibiting the importation of slaves from the other States. We extract the following: "The world is teeming with improved machinery, the combined development of science and art. _To us it is all lost; we are comparatively living in centuries that are gone; we cannot make it, we cannot use it when made._ Ohio is many years younger, and possessed of fewer advantages than our State. Cincinnati has manufactories to sustain her; last year she put up one thousand houses. Louisville, with superior natural advantages, as all the world knows, wrote 'to rent,' upon many of her houses. OHIO IS A FREE STATE, KENTUCKY A SLAVE STATE." Mr. Thomas F. Marshall, of Kentucky, in a pamphlet published the same year, and on the same subject, draws the following comparison between Virginia and New York: