much nearer to Maryland, her location far more central for trade with the whole Union, and Baltimore, her chief city, nearer than Boston to the great West, viz.: to the Ohio at Pittsburg and Cincinnati, the Mississippi at St. Louis, and the lakes at Cleveland, Toledo, and Chicago, by several hundred miles. Indeed, but for slavery, Maryland must have been a far greater manufacturing as well as commercial State than Massachusetts—and as to agriculture; there could be no comparison.
But Massachusetts did not become a manufacturing State until after the tariff of 1824. That measure, as well as the whole protective policy, Massachusetts earnestly opposed in 1820 and 1824, and Daniel Webster, as her representative, denounced it as unconstitutional. From 1790 to 1820, Massachusetts was commercial, not manufacturing, and yet, from 1790 to 1820, Massachusetts increased in numbers 144,442, and Maryland in the same time only 87,622. Yet, from 1790 to 1820, Massachusetts, the most commercial State, was far more injured by the embargo and the late war with England than any other State.
It is clear, then, that the accusation of the secession leaders that the North was built up at the expense of the South, by the tariff, can have no application to the progress of Massachusetts and Maryland, because the advance of the former over the latter preceded by more than thirty years the adoption of the protective policy, and a comparison of the relative advance of the Free and Slave States, during the same period, exhibits the same results.
There is one invariable law, whether we compare all the Slave States with all the Free States, small States with small, large with large, old with old, new with new, retarding the progress of the slaveholding States, ever operating, and differing in degree only.
The area of the nine Free States enumerated in 1790, is 169,668 square miles, and of the eight slaveholding States, 300,580 square miles, while the population of the former in 1790 was 1,968,455, and of the latter, 1,961,372; but, in 1860, these nine Free States had a population of 10,594,168, and those eight Slave States only 7,414,684, making the difference in favor of these Free States in 1860 over those Slave States, 3,179,844, instead of 7,083 in 1790, or a positive gain to those Free States over those Slave States of 3,172,761. These Free States enumerated in 1790 and 1860, were the six New England States, New York, New Jersey, and Pennsylvania; and the Slave States were Delaware, Maryland, Virginia, North and South Carolina, Georgia, Tennessee, and Kentucky: yet we have seen that the area of those Slave States was nearly double that of those Free States, the soil much more fertile, the climate more salubrious, as shown by the Census, that the shore line, including main shore, bays and sounds, islands and rivers, to head of tide water, was, for those Free States, 4,480 miles, and for those Slave States, 6,560 miles. Thus it is clear that the increase of population of these Slave States should have far exceeded that of those Free States. The population of these Slave States per square mile in 1790 was 6 (6.52), and in 1860, 24 (24.66), and of those Free States in 1790, was 11 per square mile (11.60), and in 1860, 62 per square mile (62.44). Thus, while the increase of those Slave States from 1790 to 1860 was only 18 per square mile, that of those Free States was nearly 51 per square mile (50.84), or in very nearly a triple ratio, while in wealth and education the proportionate progress was much greater.
No cause except slavery can be assigned to this wonderful difference, for the colonists of Maryland were distinguished for education, intelligence, and gentle culture. Lord Baltimore was a statesman and philanthropist, and his colony was a free representative government, which was the first to repudiate the doctrine of taxation without representation, and the first to introduce religious toleration. While Maryland has produced many of the most eminent soldiers, statesmen, and jurists, her relative decline in power, wealth, and population has been deplorable, and is attributable exclusively to the paralyzing effect of slavery.
While the advance of Massachusetts, with her limited area and sterile soil, especially in view of the thousands of her native sons who have emigrated to other States, is one of the wonders of the world, yet the relative increase of the population of New Jersey from 1790 to 1860, compared with that of Maryland, is still greater than that of Massachusetts. The law is inflexible wherever slavery disappears. Population of New Jersey in 1790, 184,139, in 1860, 672,035, being an increase of 264 per cent. (264.96) for New Jersey, of 225 per cent. (225.06) for Massachusetts, and for Maryland 114 percent. (114.88). The ratio of increase per square mile from 1790 to 1860 was: Massachusetts, 48.55 in 1790, and 157.82 in 1860; Maryland, 28.74 in 1790, and 61.76 in 1860; and New Jersey, 22.01 in 1790, and 80.70 in 1860. Thus, while Maryland from 1790 to 1860, little more than doubled her ratio of increase per square mile (28.74 to 61.76), and Massachusetts little more than tripled her ratio (48.55 to 157.82), New Jersey very nearly quadrupled hers (22.01 to 80.70). It must be conceded, however, that the natural advantages of New Jersey are far greater than those of Massachusetts, whose material and intellectual progress, in defiance of such serious obstacles, now is, and most probably forever will be, without a parallel. Now the area of New Jersey is but 8,320 square miles; the soil of Maryland is far more fertile, the hydraulic power much greater, the shoreline much more than double, viz.: 531 for New Jersey, to 1,336 for Maryland; while New Jersey, with rich iron mines, has no coal, and one third of her area is south of the celebrated Mason and Dixon's line, the northern boundary of Maryland. While the Free States have accomplished these miracles of progress, they have peopled eleven vast Territories (soon by subdivision to become many more States), immigration to which has been almost exclusively from the North as compared with the South.
The Slave State which has increased most rapidly to the square mile of all of them from 1790 to 1860, has had a smaller augmentation per square mile than that Free State which has increased most slowly per square mile during the same time of all the Free States, and the result is the same as to wealth and education also. Under the best circumstances for the Slave States, and the worst for the Free States, this result proves the uniformity of the rule (like the great law of gravitation), knowing no exception to the effect of slavery in depressing the progress of States in population, wealth, and education.
The isothermals of the great Humboldt (differing so widely from parallels), which trace the lines of temperature on the earth's surface, prove, as to heat, the climate of the South (running a line from Charleston to Vicksburg) to be substantially the same as that of Greece and Italy-each, in its turn, the mistress of the world.
The Census of 1860 exhibits our increase of population from 1790 to 1860 at 35.59 per cent., and of our wealth 126.45. Now, if we would increase the wealth of the country only one tenth in the next ten years, by the gradual disappearance of slavery (far below the results of the Census), then our wealth being now $16,159,616,068, the effect of such increase would be to make our wealth in 1870, instead of $36,593,450,585, more than sixteen hundred millions greater, and in 1880, instead of $82,865,868,849, over three billions six hundred millions, or more than three times our present debt.
Before the close of this letter, it will be shown that the difference, per capita, of the annual products of Massachusetts and Maryland exceeds $150. As to the other Southern States, the excess is much greater. Now, if the annual products of the South were increased $150 each per capita (still far below Massachusetts) by the exclusion of slavery, then multiplying the total population of the South, 12,229,727, by 150, the result would be an addition to the annual value of the products of the South of $1,834,456,050, and in the decade, $18,344,580,500. This change would not be immediate, but there can be no doubt that with the vastly greater natural advantages of the South, the superiority of free to slave labor, the immense immigration, especially from Europe to the South, aided by the Homestead Bill, and the conversion of large plantations into small farms, an addition of at least one billion of dollars would be made in a decade, by the exclusion of slavery, to the value of the products of the South.
Having considered the relative progress in population of Massachusetts and Maryland, I will now examine their advance in wealth.
By Tables 33 and 36, Census of 1860, the value of the products of Massachusetts that year was $287,000,000; and of Maryland, $66,000,000. Table 33 included domestic manufactories, mines, and fisheries (p. 59); and Table 36, agricultural products. Dividing these several aggregates by the total population of each State, the value of that year's product of Massachusetts was $235 per capita, and of Maryland, $96, making the average annual value of the labor of each person in the former greatly more than double that of the latter, and the gross product more than quadruple. This is