The increase of population in New York was:

From1790to180072.51per cent.
"1800"181063.45"
"1810"182043.14"
"1820"1830 39.76"
"1830"184026.60"
"1840"185027.52"
"1850"186025.29"

In 1790 the population of Virginia was 748,318, in 1820, 1,065,129, and in 1860, 1,596,318. In 1790 the population of New York was 340,120, in 1820, 1,372,111, and in 1860, 3,880,735. Thus, from 1790 to 1820, before the inauguration of the protective policy, the relative increase of the population of New York, as compared with Virginia, was very far greater than from 1820 to 1860. It is quite clear, then, that the Tariff had no influence whatever in depressing the progress of Virginia as compared with New York.

We have heretofore proved by the census the same position as regards the relative progress of Maryland and Massachusetts, and the same principle applies as between all the Free, as compared with all the Slave States. In New York, we have seen that her progress from 1790 to 1820, in the absence of high tariffs, and, even before the completion of her great canal, her advance in population was much more rapid than from 1820 to 1860. Indeed, it is quite clear that, so far as the Tariff had any influence, it was far more unfavorable to New York than to Virginia, New York being a much greater agricultural as well as commercial State.

Having shown how much the material progress of Virginia has been retarded by slavery, let us now consider its effect upon her moral and intellectual development.

Newspapers AND Periodicals.—The number of newspapers and periodicals in New York in 1860 was 542, of which 365 were political, 56 religious, 63 literary, 58 miscellaneous; and the number of copies circulated in 1860 was 320,930,884. (Census tables, Nos. 15, 37.) The number in Virginia was 139; of which 117 were political, 13 religious, 3 literary, 6 miscellaneous; and the number of copies circulated in 1860 was 26,772,568. Thus, the annual circulation of the press in New York was twelve times as great as that of Virginia. As to periodicals: New York had 69 monthlies, of which 2 were political, 25 religious, 24 literary, and 18 miscellaneous; 10 quarterlies, of which 5 were religious, and 5 literary; 6 annuals, of which 2 were political, 2 religious, and 2 miscellaneous. Virginia had 5 monthlies, of which 1 was political, 2 religious, 1 literary, and 1 miscellaneous; and no quarterlies or annuals. The annual circulation of the New York monthlies was 2,045,000; that of Virginia was 43,900; or more than 43 to 1 in favor of New York.

As regards schools, colleges, academies, libraries, and churches, I must take the census of 1850, those tables for 1860 not being yet arranged and printed. The number of public schools in New York in 1850 was 11,580, teachers 13,965, pupils 675,221; colleges, academies, etc., pupils 52,001; attending school during the year, as returned by families, 693,329; native adults of the State who cannot read or write, 23,341. Public libraries, 11,013; volumes, 1,760,820. Value of churches, $21,539,561. (Comp. Census, 1850.)

The number of public schools in Virginia in 1850 was 2,937, teachers 3,005, pupils 67,438; colleges, academies, etc., pupils 10,326; attending school during the year, as returned by families, 109,775; native white adults of the State who cannot read or write, 75,868. Public libraries, 54; volumes, 88,462. Value of churches, $2,902,220. (Compend. of Census of 1850.) By table 155, same compend, the percentage of native free population in Virginia over 20 years of age who cannot read or write is 19.90, and in New York 1.87, in North Carolina 30.34, in Maryland 11.10, in Massachusetts 0.32, or less than one third of one per cent. In New England, the percentage of native whites who cannot read or write is 0.42, or less than one half of one per cent.; and in the Southern States 20.30, or 50 to 1 in favor of New England. (Compend., table 157.) But, if we take the whole adult population of Virginia, including whites, free blacks, and slaves, 42.05 per cent., or nearly one half, cannot read or write; and in North Carolina, more than one half cannot read or write. We have seen, by the above official tables of the census of 1850, that New York, compared with Virginia, had nearly ten times as many pupils at schools, colleges, and academies, twenty times as many books in libraries, and largely more than seven times the value of churches; while the ratio of native white adults who cannot read or write was more than 10 to 1 in Virginia, compared with New York. We have seen, also, that in North Carolina nearly one third of the native white adults, and in Virginia nearly one fifth, cannot read or write, and in New England 1 in every 400, in New York 1 in every 131, in the South and Southwest 1 in every 12 of the native white adults. (Comp. p. 153.)

These official statistics enable me, then, again to say that slavery is hostile to the progress of wealth and education, to science and literature, to schools, colleges, and universities, to books and libraries, to churches and religion, to the press, and therefore to free government; hostile to the poor, keeping them in want and ignorance; hostile to labor, reducing it to servitude, and decreasing two thirds the value of its products; hostile to morals, repudiating among slaves the marital and parental condition, classifying them by law as chattels, darkening the immortal soul, and making it a crime to teach millions of human beings to read or write. Surely such a system is hostile to civilization, which consists in the education of the masses of the people of a country, and not of the few only. A State, one third of whose population are slaves, classified by law as chattels, and forbidden all instruction, and nearly one fifth of whose adult whites cannot read or write, is semi-civilized, however enlightened may be the ruling classes. If a highly educated chief or parliament governed China or Dahomey, they would still be semi-civilized or barbarous countries, however enlightened their rulers might be. The real discord between the North and the South, is not only the difference between freedom and slavery, but between civilization and barbarism caused by slavery. When we speak of a civilized nation, we mean the masses of the people, and not the government or rulers only. The enlightenment of the people is the true criterion of civilization, and any community that falls below this standard, is barbarous or semi-civilized. In countries where kings or oligarchies rule, the government may be maintained, (however unjustly,) without educating the masses; but, in a republic, or popular government, this is impossible; and the deluded masses of the South never could have been driven into this rebellion, but for the ignorance into which they had been plunged by slavery; nor is there any remedy for the evil but emancipation. If, then, we would give stability and wisdom to the government, and perpetuity to the Union, we must abolish slavery, which withholds education and enlightenment from the masses of the people, who, with us, control the policy of the nation.

With our only cause of ignorance and poverty among the people, and only element of discord among the States, extirpated by the gradual removal of slavery and negroism, we would bound forward in a new and wonderful career of power and prosperity. Our noble vessel of state, the great Republic, freighted with the hopes of humanity, and the liberties of our country and of mankind, still bearing aloft the flag of our mighty Union, indissoluble by domestic traitors or conspiring oligarchs, will, under Divine guidance, pass over the troubled waters, reassuring a desponding world, as she glides into the blessed haven of safety and repose. All the miracles of our past career would be eclipsed by the glories of the future. We might then laugh to scorn the impotent malice of foreign foes. Without force or fraud, without sceptre or bayonet, our moral influence and example, for their own good, and by their own free choice, would control the institutions and destiny of nations. The wise men of the East may then journey westward again, to see the rising star of a regenerated humanity, the fall of thrones and dynasties, the lifting up of the downtrodden masses, and the political redemption of our race, not by a new dispensation, but by the fulfilment thus of the glorious prophecies and blessed promises of Holy Writ. And can we not lift ourselves into that serene atmosphere of love of country and of our race, above all selfish schemes or mere party devices, and contemplate the grandeur of these results, if now, now, NOW we will only do our duty? Now, indeed, is the 'accepted time,' now is the day of the 'salvation' of our country. And now, as in former days of trouble, let us remember the mighty dead, as, when living, silencing the voice of treason, and calming the tempest of revolution, he uttered those electric words: 'Union and Liberty, now and forever, one and inseparable!'