The planters, on the other hand, had spread their system over the lower South in a remarkable manner since 1830. From eastern Virginia their patriarchal establishments had been pushed westward and southwestward until in 1860 the black belt reached to the Rio Grande. Tobacco, cotton, and sugar were still their great staples, and the annual returns from these were not less than $300,000,000; while the growth of their output between 1850 and 1860 was more than one hundred per cent. The number of slaves who worked the plantations had increased between 1830 and 1860 from 2,000,000 to nearly 4,000,000 souls, thus suggesting the comparison with the workers in the mills of the East. The exports of the black belt composed more than two thirds of the total exports of the country; but they were largely billed through Eastern ports, and most of the imports of the South came through New York, where a second toll was taken from the products of the plantation. But the ratio of annual returns to the total investments was very unlike that of the East. In the South the assessed value of real estate and personal property, including slaves, in 1860 was $5,370,000,000, while the returns for the best years were somewhat over $300,000,000: that is, their investment was $1,000,000,000 greater than that of the East and their income not more than a third as great. Perhaps the banking statistics of the planter section will enable us to get a better view of their dependence upon the East. The South had in 1860 a banking capital of $89,131,000, a bank-note circulation of $68,344,000, and money on deposit, $56,342,000. Thus an annual return of $300,000,000 brought deposits of only $56,000,000; and the _per capita_ circulation was only $10. New York City alone had twice as much money on deposit as all the Southern States, though the personal property valuation of the whole State of New York, with a population four times as great, was only $320,000,000 as against $240,000,000 for Virginia.