Do you ask, "What has the North to do with slavery?" Hear it, hear it! Those voices without tell us that the spirit of slavery is here, and has been roused to wrath by our Conventions; for surely liberty would not foam and tear herself with rage, because her friends are multiplied daily, and meetings are held in quick succession to set forth her virtues and extend her peaceful kingdom. This opposition show's that slavery has done its deadliest work in the hearts of our citizens. Do you ask, then, "What has the North to do?" I answer, cast out first the spirit of slavery from your own hearts, and then lend your aid to convert the South. Each one present has a work to do, be his or her situation what it may, however limited their means or insignificant their supposed influence. The great men of this country will not do this work; the Church will never do it. A desire to please the world, to keep the favor of all parties and of all conditions, makes them dumb on this and every other unpopular subject.

As a Southerner, I feel that it is my duty to stand up here to-night and bear testimony against slavery. I have seen it! I have seen it! I know it has horrors that can never be described. I was brought up under its wing. I witnessed for many years its demoralizing influences and its destructiveness to human happiness. I have never seen a happy slave. I have seen him dance in his chains, it is true, but he was not happy. There is a wide difference between happiness and mirth. Man can not enjoy happiness while his manhood is destroyed. Slaves, however, may be. and sometimes are mirthful. When hope is extinguished, they say, "Let us eat and drink, for to-morrow we die." [Here stones were thrown at the windows--a great noise without and commotion within.]

What is a mob? what would the breaking of every window be? What would the levelling of this hall be? Any evidence that we are wrong, or that slavery is a good and wholesome institution? What if the mob should now burst in upon us, break up our meeting, and commit violence upon our persons, would that be anything compared with what the slaves endure? No, no; and we do not remember them, "as bound with them," if we shrink in the time of peril, or feel unwilling to sacrifice ourselves, if need be, for their sake. [Great noise.] I thank the Lord that there is yet life enough left to feel the truth, even though it rages at it; that conscience is not so completely seared as to be unmoved by the truth of the living God. [Another outbreak of the mob and confusion in the house.]

How wonderfully constituted is the human mind! How it resists, as long as it can, all efforts to reclaim it from error! I feel that all this disturbance is but an evidence that our efforts are the best that could have been adopted, or else the friends of slavery would not care for what we say and do. The South know what we do. I am thankful that they are reached by our efforts. Many times have I wept in the land of my birth over the system of slavery. I knew of none who sympathized in my feelings; I was unaware that any efforts were made to deliver the oppressed; no voice in the wilderness was heard calling on the people to repent and do works meet for repentance, and my heart sickened within me. Oh, how should I have rejoiced to know that such efforts as these were being made. I only wonder that I had such feelings. But in the midst of temptation I was preserved, and my sympathy grew warmer, and my hatred of slavery more inveterate, until at last I have exiled myself from my native land, because I could no longer endure to hear the wailing of the slave.

I fled to the land of Penn; for here, thought I, sympathy for the slave will surely be found. But I found it not. The people were kind and hospitable, but the slave had no place in their thoughts. I therefore shut up my grief in my own heart. I remembered that I was a Carolinian, from a State which framed this iniquity by law. Every Southern breeze wafted to me the discordant tones of weeping and wailing, shrieks and groans, mingled with prayers and blasphemous curses. My heart sank within me at the abominations in the midst of which I had been born and educated. What will it avail, cried I, in bitterness of spirit, to expose to the gaze of strangers the horrors and pollutions of slavery, when there is no ear to hear nor heart to feel and pray for the slave? But how different do I feel now! Animated with hope, nay, with an assurance of the triumph of liberty and good-will to man, I will lift up my voice like a trumpet, and show this people what they can do to influence the Southern mind and overthrow slavery. [Shouting, and stones against the windows.]

We often hear the question asked, "What shall we do?" Here is an opportunity. Every man and every woman present may do something, by showing that we fear not a mob, and in the midst of revilings and threatenings, pleading the cause of those who are ready to perish. Let me urge every one to buy the books written on this subject; read them, and lend them to your neighbors. Give your money no longer for things which pander to pride and lust, but aid in scattering "the living coals of truth upon the naked heart of the nation"; in circulating appeals to the sympathies of Christians in behalf of the outraged slave.

But it is said by some, our "books and papers do not speak the truth"; why, then, do they not contradict what we say? They can not. Moreover, the South has entreated, nay, commanded us, to be silent; and what greater evidence of the truth of our publications could be desired?

Women of Philadelphia! allow me as a Southern woman, with much attachment to the land of my birth, to entreat you to come up to this work. Especially, let me urge you to petition. Men may settle this and other questions at the ballot-box, but you have no such right. It is only through petitions that you can reach the Legislature. It is, therefore, peculiarly your duty to petition. Do you say, "It does no good!" The South already turns pale at the number sent. They have read the reports of the proceedings of Congress, and there have seen that among other petitions were very many from the women of the North on the subject of slavery. Men who hold the rod over slaves rule in the councils of the nation; and they deny our right to petition and remonstrate against abuses of our sex and our kind. We have these rights, however, from our God. Only let us exercise them, and, though often turned away unanswered, let us remember the influence of importunity upon the unjust judge, and act accordingly. The fact that the South looks jealously upon our measures shows that they are effectual. There is, therefore, no cause for doubting or despair.

It was remarked in England that women did much to abolish slavery in her colonies. Nor are they now idle. Numerous petitions from them have recently been presented to the Queen to abolish apprenticeship, with its cruelties, nearly equal to those of the system whose place it supplies. One petition, two miles and a quarter long, has been presented. And do you think these labors will be in vain? Let the history of the past answer. When the women of these States send up to Congress such a petition our legislators will arise, as did those of England, and say: "When all the maids and matrons of the land are knocking at our doors we must legislate." Let the zeal and love, the faith and works of our English sisters quicken ours; that while the slaves continue to suffer, and when they shout for deliverance, we may feel the satisfaction of "having done what we could."