"In Pennsylvania slavery was abolished in 1780. In New Jersey it was provisionally abolished in 1784; all children born of a slave after 1804 are made free in 1820. In Massachusetts, it was declared after the revolution, that slavery was virtually abolished by their Constitution, (1780). In 1784 and 1797, Connecticut provided for a gradual extinction of slavery. In Rhode Island, after 1784, no person could be _born_ a slave. The Constitutions of Vermont and New Hampshire, respectively, abolished slavery. In New York it was provisionally abolished in 1799, twenty-eight years' ownership being allowed in slaves born after that date, and in 1817 it was enacted that slavery was not to exist after ten years, or 1827. The ordinance of 1787 forbid slavery in the territory northwest of the Ohio." Besides the instances enumerated above, slavery has been abolished in more than forty different parts of the world within the last half century, and with good results everywhere, except two or three West India islands, where the negro population was greatly in excess of the whites; and even in these, the evils, if any, that have followed, are not justly attributable to abolition, but to the previous demoralization produced by slavery. In this connection we may very properly introduce the testimony of a West India planter to the relative advantages of Free over Slave Labor. Listen to Charles Pettyjohn, of Barbadoes, who, addressing himself to a citizen of our own country, says:-- "In 1834, I came in possession of 257 slaves, under the laws of England, which required the owner to feed, clothe, and furnish them with medical attendance. With this number I cultivated my sugar plantation until the Emancipation Act of August 1st, 1838, when they all became free. I now hire a portion of those slaves, the best and cheapest of course, as you hire men in the United States. The average number which I employ is 100, with which I cultivate more land at a cheaper rate, and make more produce than I did with 257 slaves. With my slaves I made from 100 to 180 tons of sugar yearly. With 100 free negroes I think I do badly if I do not annually produce 250 tons." If, in the forty and more instances to which we have alluded, the abolition of slavery had proved injurious in a majority of cases, the attempt to abolish it elsewhere might, perhaps, be regarded as an ill-advised effort; but, seeing that its abolition has worked well in at least fourteen-fifteenths of all the cases on record, the fact becomes obvious that it is our duty and our interest to continue to abolish it until the whole world shall be freed, or until we shall begin to see more evil than good result from our acts of emancipation. THE TRUE FRIENDS OF THE SOUTH.