We know of no one who pretends to believe that the masses of the African tribes have increased in number since the commencement of our era; whereas, a few scattering individuals, brought into slavery, within the last few generations, in these States, have increased to near four millions; nearly one-twelfth of the number of the entire population of Africa. However wicked may be the Christian master, how much more is slavery to be desired by the negro than any condition among these pagan hordes! We, therefore, do not deem it presumptuous to say, that so degraded is the condition of the African in his own land, that it has been elevated in proportion as it has been affected by the slave-trade, and more especially with Christian nations. The first tendencies towards civilization, and whatever dawning of mental development there may be now noticed among the African tribes, are traceable alone to that source. And the Christian philosopher might well inquire whether, in the providence of God, its existence, from the time of Noah to the present, has not been the saving principle which has alone preserved the tribes of Ham from the condition of Sodom and Gomorrah, and other nations long since wasted away. ------------------ LESSON XX. Mr. Barnes has quoted and adopted the following passage from President Wayland, page 310: “If the religion of Christ allows such a license (to hold slaves) from such precepts as these, the New Testament would be the greatest curse that ever was inflicted on _our race_.” On the account of the avowal of Dr. Barnes as to _his race_, heretofore noticed, we feel a degree of gladness that the above passage is not original with him: we should expect to find in him a sympathy on this subject, unpleasant to encounter, because legitimately acting on his mind. A man may be a philosopher or a Christian, yet the ties of nature, the sympathies of kindred are not abated.