Climate and Mortality.—By Table 6, page 22, of the Census, there were for the year ending June 1st, 1860, 46,881 deaths in New York, being 1 in every 82 of the population, and 1.22 per cent. The number of deaths in Virginia, in the same year, was 22,472, being 1 in every 70 of the population, or 1.43 per cent. There was, then, a slight difference in favor of New York. But Virginia is divided into four geographical sections; the tide-water, the Piedmont (running from the tide-water region to the Blue Mountains), the valley between these mountains and the Alleghanies, and the trans-Alleghany to the Ohio. These three last sections, containing three fourths of the area and white population of the State, surpass New York in salubrity, with the most bracing and delightful climate. The climate of Virginia is far more favorable for stock and agricultural products than New York, with longer and better seasons, and is more salubrious than the climate of Europe. (Comp. 1850.)

Progress of Wealth.—We have seen how great was the advance in population of New York over Virginia, from 1790 to 1860, being in the ratio of more than 9 to 1. Now let us compare the relative progress of wealth. It is contended by the advocates of slavery, that it accumulates wealth more rapidly, and thus enriches the nation, although it may depress its moral and intellectual development, its increase of numbers and of power, and tarnish its reputation throughout the world. As population and its labor create wealth, it must be retarded by a system which, as we have seen in this case, diminishes the relative advance of numbers in the ratio of more than 9 to 1. But the Census proves that slavery greatly retards the increase of wealth. By Tables 33 and 36 of the Census of 1860, it appears, omitting commerce, that the products of industry, as given, viz., of agriculture, manufactures, mines, and fisheries, were that year in New York $606,000,000, or $156 per capita; and in Virginia $120,000,000, or $75 per capita. This shows a total value of product in New York more than five times greater than in Virginia, and per capita more than 2 to 1. If we include the earnings of commerce, and all business not given in the Census, I think it will be shown hereafter, that the value of the products and earnings of New York, in 1860, exceeded those of Virginia at least 7 to 1. As to the rate of increase, the value of the products of agriculture, manufactures, mines, and fisheries, of Virginia, in 1850, was $84,180,428 (Table 9), and in New York $358,736,603, showing an increase in Virginia from 1850 to 1860 of $35,519,572, being 41 per cent., and in New York $249,263,397, being 70 per cent., exhibiting a difference of 29 per cent. Now the increase of population in Virginia from 1850 to 1860 was 12.29 per cent., and in New York 25.29 per cent., the difference being only 13 per cent. (Table 1, p. 131.) Thus, it appears, the increase of wealth in New York, exclusive of the gains of commerce, as compared with Virginia, was more than double the ratio of the augmentation of population. By the Census Table of 1860, No. 35, p. 195, 'The true value of the real and personal property, according to the eighth Census was, New York, $1,843,338,517, and of Virginia, $793,249,681.' Now we have seen the value of the products of New York in 1860 by the Census was $606,000,000, and in Virginia $120,000,000. Thus, as a question of the annual yield of capital, that of New York was 34 per cent., and Virginia 15 per cent.; the annual product of capital being more than double in New York what it was in Virginia. The problem then is solved in Virginia, as it was in Maryland and South Carolina, and all the South compared with all the North, that slavery retards the progress of wealth and accumulation of capital in the ratio of 2 to 1. Our war taxes may be very great, but the tax of slavery is far greater, and the relief from it, in a few years, will add much more to the national wealth than the whole deduction made by the war debt. Our total wealth, by the Census of 1860, being, by Table 35, $16,159,616,068, one per cent. taken annually to pay the interest and gradually extinguish the war debt, would be $161,596,160; whereas, judging by Virginia and New York, the diminished increase of the annual product of capital, as the result of slavery, is 2.10 per cent., or $453,469,250 per annum, equal in a decade, without compounding the annual results, to $4,534,692,500.

That our population would have reached in 1860 nearly 40,000,000, and our wealth have been more than doubled, if slavery had been extinguished in 1790, is one of the revelations made by the Census; while in science, in education, and national power, the advance would have been still more rapid, and the moral force of our example and success would have controlled for the benefit of mankind the institutions of the world.

By Table 36, page 196, of the Census of 1860, the cash value of the farms of Virginia was $371,096,211, being $11.91 per acre, and of New York $803,343,593, being $38.26 per acre. Now, by the Table, the number of acres embraced in these farms of New York was 20,992,950, and in Virginia 31,014,950, the difference of value per acre being $25.36, or much more than 3 to 1 in favor of New York. Now, if we multiply this number of acres of farm lands of Virginia by the New York value, it would make the total value of the farm lands of Virginia, $1,186,942,136, and the additional value caused by emancipation $815,845,925. But, stupendous as is this result in regard to lands, it is far below the reality. We have seen that the farm lands of Virginia, improved and unimproved, constituted 31,014,950 acres. By the Census and the Land Office Tables, the area of Virginia is 39,265,280 acres. Deduct the farm lands, and there remain unoccupied 8,250,330 acres. Now, Virginia's population to the square mile being 26.02, and that of New York 84.36, with an equal density in Virginia, more than two thirds of these Virginia lands, as in New York, must have been occupied as farms. This would have been equivalent, at two thirds, to 5,500,000 acres, which, at their present average value of $2 per acre, would be worth $11,000,000; but, at the value per acre of the New York lands, these 5,500,000 acres would be worth $206,430,000. Deduct from this their present value, $11,000,000, and the remainder, $195,430,000, is the sum by which the unoccupied lands of Virginia, converted into farms, would have been increased in value by emancipation. Add this to the enhanced value of their present farms, $815,845,925, and the result would be $1,011,275,925, as the gain of Virginia in the value of lands by emancipation. To these we should add, from the same cause, the enhancement of the town and city property in Virginia to the extent of several hundred millions of dollars. In order to realize the truth, we must behold Virginia as she would have been, with New York railroads and canals, farms, manufactures, commerce, towns, and cities. Then we must consider the superior natural advantages of Virginia, her far greater area, her richer soil, her more genial sun, her greater variety of products, her mines of coal, iron, gold, copper, and lead, her petroleum, her superior hydraulic power, her much larger coast line, with more numerous and deeper harbors—and reflect what Virginia would have been in the absence of slavery. Her early statesmen, Washington, Jefferson, Madison, Monroe, Mason, Tucker, and Marshall, all realized this great truth, and all desired to promote emancipation in Virginia. But their advice was disregarded by her present leaders—the new, false, and fatal dogmas of Calhoun were substituted; and, as a consequence, Virginia, from the first rank (longo intervallo) of all the States, has fallen to the fifth, and, with slavery continued, will descend still more rapidly in the future than in the past.

By Census Table 36, p. 197, the value, in 1860, of the farm lands of all the Slave States, was $2,570,466,935, and the number of acres 245,721,062, worth $10.46 per acre. In the Free States, the value of the farm lands was $4,067,947,286, and the number of acres 161,462,008, worth $25.19 per acre. Now if, as certainly in the absence of slavery would have been the case, the farm lands of the South had been worth as much per acre as those of the North, their total value would have been $6,189,713,551, and, deducting the present price, the additional cash value would have been $3,619,246,616.

But if, to this, we add the increased value of the unoccupied lands of the South, by multiplying them by the difference between their value per acre and that of the unoccupied lands of the North, the result is $2,240,000,000, which, added to that of the farm lands, makes $5,859,246,616, as the augmented value of the lands of the South caused by emancipation.

By Census Tables of 1860, 33 and 36, the total value of the products of agriculture, manufactures, mines, and fisheries in the Free States was $4,150,000,000, and of the Slave States $1,140,000,000, making the products of the Free States in 1860 nearly 4 to 1 of the Slave States, and $217 per capita for the Free States, and for the Slave States $93 per capita. This is exclusive of commerce, which would greatly increase the ratio in favor of the North, that of New York alone being nearly equal to that of all the Slave States. Now, multiplying the population of the Slave States by the value of the products per capita of the Free States, and the result is $2,653,631,032, making, by emancipation, the increased annual product of the Slave States $1,511,031,032, and in ten years, exclusive of the yearly accumulations, $15,110,310,320.

By the Table 35, Census of 1860, the total value of all the property, real and personal, of the Free States, was $10,852,081,681, and of the Slave States, $5,225,307,034. Now, the product, in 1860, of the Free States, being $4,150,000,000, the annual yield on the capital was 39 per cent.; and, the product of the Slave States being $1,140,000,000, the yield on the capital was 22 per cent. This was the gross product in both cases. I have worked out these amazing results from the Census Tables, to illustrate the fact, that the same law, by which slavery retarded the progress of wealth in Virginia, as compared with New York, and of Maryland and South Carolina, as compared with Massachusetts, rules the relative advance in wealth of all the Slave States, as compared with that of all the Free States. I have stated that the statistics of commerce, omitted in these tables, would vastly increase the difference in favor of the Free States as compared with the Slave States, and of New York as contrasted with Virginia. I shall now resume the latter inquiry, so as to complete the comparison between New York and Virginia. By commerce is embraced, in this examination, all earnings not included under the heads of agriculture, manufactures, the mines, or fisheries.

Railroads.—The number of miles of railroads in operation in New York, in 1860, including city roads, was 2,842 miles,[3] costing $138,395,055; and in Virginia, 1,771 miles, costing $64,958,807. (Census Table of 1860, No. 38, pp. 230 and 233.) Now, by the same Census Report, p. 105, the value of the freights of the New York roads for 1860 was as follows: Product of the forest—tons carried, 373,424; value per ton, $20; total value, $7,468,480. Of animals—895,519 tons; value per ton, $200; total value, $179,103,800. Vegetable food—1,103,646 tons; value per ton, $50; total value, $55,182,000. Other agricultural products—143,219 tons; value per ton, $15; total value, $2,148,055. Manufactures—511,916 tons; value per ton, $500; total value, $391,905,500. Other articles—930,244 tons; value $10 per ton; total value, $9,302,440. Grand total, 4,741,773 tons carried; value per ton, $163. Total values, $773,089,275. Deducting one quarter for duplication, makes 3,556,330 tons carried on the New York roads in 1860; and the value, $579,681,790. The values of the freights on the Virginia roads, as estimated, is $60,000,000, giving an excess to those of New York of $519,681,790, on the value of railroad freights in 1860. The passenger account, not given, would largely increase the disparity in favor of New York.

Canals.—The number of miles of canals in New York is 1,038, and their cost $67,567,972. In Virginia, the number of miles is 178, and the cost $7,817,000. (Census Table 39, p. 238.) The estimated value of the freight on the New York canals is 19 times that of the freight on the Virginia canals. (Census.)