Kentucky toward freedom, but that disappeared; and the reason why it did so may be seen in the greatly increased tendency to the abandonment of the older tobacco and cotton growing States, as here shown:-- 1820. 1830. 1840. 1850. ----- ----- ----- ----- Total population: Virginia......... 1,065,379 1,211,405 1,239,797 1,424,863 South Carolina..... 502,741 581,185 594,398 668,247 Ratio of increase: Virginia..................... 13.6 2.3 15.2 South Carolina............... 15.6 2.3 12.4 With the increase in the export of slaves to the South, the negro population declined in its ratio of increase, whereas it has grown with the growth of the power of the slave to remain at home, as is here shown:-- 1820. 1830. 1840. 1850. ----- ----- ----- ----- Total black population: 1,779,885 2,328,642 2,873,703 3,591,000 Ratio of increase........... 30 30.8 24 25 We see thus that the more the black population can remain at home, the more rapidly they increase; and the reason why such is the case is, that at home they are among their own people, by whom they have been known from infancy, and are of course better fed and clothed, more tenderly treated, and more lightly worked, with far greater tendency toward freedom. It would thence appear that if we desire to bring about the freedom of the negro, we must endeavour to arrest the domestic slave trade, and enable the slave and his master to remain at home; and to do this we must look to the causes of the difference in the extent of the trade in the periods above referred to. Doing this, we shall find that from 1820 to 1830 there was a decided tendency toward bringing the artisan to the side of the ploughman; whereas from 1833 to 1840 the tendency was very strong in the opposite direction, and so continued until 1842, at which time a change took place, and continued until near the close of the decennial period, when our present revenue system came fully into operation. The artisan has now ceased to come to the side of the planter. Throughout the country cotton and woollen mills and furnaces and foundries have been closed, and women and children who were engaged in performing the lighter labour of converting cotton into cloth are now being sold for the heavier labour of the cotton-field, as is shown by the following advertisement, now but a few weeks old:-- SALE OF NEGROES.--The negroes belonging to the Saluda Manufacturing Company were sold yesterday for one-fourth cash, the balance in one and two years, with interest, and averaged $599. Boys from 16 to 25 brought $900 to $1000.--_Columbia, (S. C.) Banner_, Dec. 31, 1852.