in profits for mutual benefit. This social as well as political union, together with the specializing and differentiation of pursuits, and observing duties as rights, would falsify the gloomy dogma of Malthus, founded on the doctrine of the eternal and ever-augmenting antagonism of wages and money, and solve, in favor of humanity, the great problem of the grand and glorious destiny of the masses of mankind. The law of humanity is progress, onward and upward, and will, in time, crush all opposing obstacles. If all--_all_ were fully educated, what miracles would be accomplished, how great the increase of important inventions and discoveries, and how many new and sublime truths in science, sociology, and government would be developed! Would not the progress of the State or nation approximate, then, a ratio depending on its numbers? If all the States had contributed as much as Massachusetts to the treasury and diffusion of knowledge, our whole country, North and South, would have been advanced a century, and this rebellion, based upon the ignorance, imperfect civilization, and semibarbarism produced by slavery, could never have occurred. By table 35 of the census, p. 195, the whole value of all the property, real and personal, of Massachusetts, in 1860, was $815,237,433, and of Maryland, $376,919,944. We have seen that the value of the products that year in Massachusetts was $283,000,000 (exclusive of commerce), and of Maryland, $65,583,000. As a question, then, of profit on capital, that of Massachusetts was 34 per cent., and of Maryland 17 per cent. Such is the progressive advance (two to one) of free as compared with slave labor. The same law obtains in comparing all the free with all the slave States. But the proof is still more complete. Thus, Delaware and Missouri (alone of all the slave States) were ahead of Maryland in this rate of profit, because both had comparatively fewer slaves; and all the other slave States, whose servile population was relatively larger than that of Maryland, were below her in the rate of profit. The law extends to _counties_, those having comparatively fewest slaves increasing far more rapidly in wealth and population. This, then, is the formula as to the rate of profit on capital. First, the free States; next the States and counties of the same State having the fewest relative number of slaves. The census, then, is an evangel against slavery, and its tables are revelations proclaiming laws as divine as those written by the finger of God at Mount Sinai on the tables of stone.