'In this table the labor of all immigrants each year is properly added to those arriving the succeeding year, so as to make the aggregate the last year 1,000,000. This would make the value of the labor of this million of immigrants in ten years, $550,000,000, independent of the annual accumulation of capital, and the labor of the children of the immigrants (born here) after the first ten years, which, with their descendants, would go on constantly increasing. 'But, by the official returns (p. 14, Census), the number of alien immigrants to the United States, from December, 1850, to December, 1860, was 2,598,216, or an annual average of 260,000. 'The effect, then, of this immigration, on the basis of the last table, upon the increase of national wealth, was as follows: 1st year 260,000 = $26,000,000 2d " 520,000 = 52,000,000 3d " 780,000 = 78,000,000 4th " 1,040,000 = 104,000,000 5th " 1,300,000 = 130,000,000 6th " 1,560,000 = 156,000,000 7th " 1,820,000 = 182,000,000 8th " 2,080,000 = 208,000,000 9th " 2,340,000 = 234,000,000 10th " 2,600,000 = 260,000,000 -------------- Total, $1,430,000,000 'Thus, the value of the labor of the immigrants, from 1850 to 1860, was $1,430,000,000, making no allowance for the accumulation of capital, by annual reinvestment, nor for the natural increase of this population, amounting, by the Census, in ten years, to about twenty-four per cent. This addition to our wealth, by the labor of the children, in the first ten years, would be small; but in the second and each succeeding decade, when we count children, and their descendants, it would be large and constantly augmenting. But the Census shows that our wealth increases each ten years at the rate of 126.45 per cent. (Census Table 35.) Now, then, take our increase of wealth, in consequence of immigration, as before stated, and compound it at the rate of 126.45 per cent. every ten years, and the result is largely over $3,000,000,000 in 1870, and over $7,000,000,000 in 1880, independent of the effect of any immigration succeeding 1860. If these results are astonishing, we must remember that immigration here is augmented population, and that it is population and labor that create wealth. Capital, indeed, is but the accumulation of labor. Immigration, then, from 1850 to 1860, added to our national products a sum more than double our whole debt on the 1st of July last, and augmenting in a ratio much more rapid than its increase, and thus enabling us to bear the war expenses.'