{244} Independently of these causes which, wherever free workmen abound, render their labor more productive and more economical than that of slaves, another cause may be pointed out which is peculiar to the United States: the sugar-cane has hitherto been cultivated with success only upon the banks of the Mississippi, near the mouth of that river in the gulf of Mexico. In Louisiana the cultivation of the sugar-cane is exceedingly lucrative; nowhere does a laborer earn so much by his work: and, as there is always a certain relation between the cost of production and the value of the produce, the price of slaves is very high in Louisiana. But Louisiana is one of the confederate states, and slaves may be carried thither from all parts of the Union; the price given for slaves in New Orleans consequently raises the value of slaves in all the other markets. The consequence of this is, that in the countries where the land is less productive, the cost of slave labor is still very considerable, which gives an additional advantage to the competition of free labor.
{245} A peculiar reason contributes to detach the two last-mentioned states from the cause of slavery. The former wealth of this part of the Union was principally derived from the cultivation of tobacco. This cultivation is specially carried on by slaves; but within the last few years the market-price of tobacco has diminished, while the value of the slaves remains the same. Thus the ratio between the cost of production and the value of the produce is changed. The natives of Maryland and Virginia are therefore more disposed than they were thirty years ago, to give up slave labor in the cultivation of tobacco, or to give up slavery and tobacco at the same time.
{246} The states in which slavery is abolished usually do what they can to render their territory disagreeable to the negroes as a place of residence; and as a kind of emulation exists between the different states in this respect, the unhappy blacks can only choose the least of the evils which beset them.
{247} There is a very great difference between the mortality of the blacks and of the whites in the states in which slavery is abolished; from 1820 to 1831 only one out of forty-two individuals of the white population died in Philadelphia; but one negro out of twenty-one individuals of the black population died in the same space of time. The mortality is by no means so great among the negroes who are still slaves. (See Emmerson's Medical Statistics, p. 28.)
{248} This is true of the spots in which rice is cultivated; rice-grounds, which are unwholesome in all countries, are particularly dangerous in those regions which are exposed to the beams of a tropical sun. Europeans would not find it easy to cultivate the soil in that part of the New World if it must necessarily be made to produce rice: but may they not subsist without rice-grounds?
{249} These states are nearer to the equator than Italy and Spain, but the temperature of the continent of America is very much lower than that of Europe.
{250} The Spanish government formerly caused a certain number of peasants from the Azores to be transported into a district of Louisiana called Attakapas, by way of experiment. These settlers still cultivate the soil without the assistance of slaves, but their industry is so languid as scarcely to supply their most necessary wants.
{251} We find it asserted in an American work, entitled, "Letters on the Colonization Society," by Mr. Carey, 1833, that "for the last forty years the black race has increased more rapidly than the white race in the state of South Carolina; and that if we take the average population of the five states of the south into which slaves were first introduced, viz., Maryland, Virginia, South Carolina, North Carolina, and Georgia, we shall find that from 1790 to 1830, the whites have augmented in the proportion of 80 to 100, and the blacks in that of 112 to 100."
In the United States, 1830, the population of the two races stood as follows:—
States where slavery is abolished, 6,565,434 whites; 120,520 blacks. Slave states, 3,960,814 whites; 2,208,112 blacks.