For many centuries, slavery extended over every part of Europe, yet history gives us no account of the ruin of the soil. In Greece and Rome, the numbers of slaves were extended to millions beyond any number these States possess; but their historians failed to discover their destructive influence on the fertility of those countries. Before the impoverishment of the soil can, with any force, be adduced as proof against slavery, it must be proved to be a necessary consequence; which, we apprehend, will be a difficult labour, since the sluggishness and the idleness of the Canaanites, and of the nations round about, left their country overflowing with milk and honey, abounding in fat pastures and good, notwithstanding their population were, to a large extent, slaves,—since, also, the servile cultivation of the soil in Greece and Rome did not impoverish it; and since slavery, which everywhere abounded in Europe, never produced that effect. If Dr. Wayland will discover the legitimate cause of this impoverishment of the soil in the Slave States, and teach the planters a better mode of cultivation, we doubt not he will receive their thanks, and deserve well of his country, as a public benefactor. ------------------ LESSON VII. Dr. Wayland says: P. 209. “The moral precepts of the Bible are diametrically opposed to slavery.” P. 210. “The moral principles of the gospel are directly subversive of the principles of slavery.” * * * “If the gospel be diametrically opposed to the _principles_ of slavery, it must be opposed to the _practice_ of slavery; and, therefore, were the principles of the gospel fully adopted, slavery could not exist.” Dr. Wayland having conceived himself to possess a distinct faculty, which reveals to him, with unerring truthfulness, whatever is right and all that is wrong, may be expected to consider himself fully able to decide, in his own way, what instruction God intended to convey to us, on the subject of slavery, through the books of Divine revelation; yet, we cannot but imagine that St. Paul would be somewhat astonished, if presented with the doctor’s decision for his approval, and that he would cry out: “Who art thou that judgest another man’s servant? To his own master, he standeth, or falleth: yea, he will be holden up; for God is able to make him stand.” But although we cannot boast of possessing this unerring moral guide, which, of late years, seems to be so common a possession among that class who ardently desire us to believe that they have monopolized all the knowledge of God’s will on the subject of slavery, yet we may venture a remark on the logical accuracy of Dr. Wayland’s argument.