I will begin with certainly the ablest and perhaps the most honest statesman who has ever touched the slave question. Any one who will examine John Quincy Adams' speech on Texas, in 1838, will see that he was only seconding the full and able exposure of the Texas plot, prepared by Benjamin Lundy, to one of whose pamphlets Dr. Channing, in his "Letter to Henry Clay," has confessed his obligation. Every one acquainted with those years will allow that the North owes its earliest knowledge and first awakening on that subject to Mr. Lundy, who made long journeys and devoted years to the investigation. His labors have this attestation, that they quickened the zeal and strengthened the hands of such men as Adams and Channing. I have been told that Mr. Lundy prepared a brief for Mr. Adams, and furnished him the materials for his speech on Texas.

Look next at the right of petition. Long before any member of Congress had opened his mouth in its defence, the Abolition presses and lecturers had examined and defended the limits of this right with profound historical research and eminent constitutional ability. So thoroughly had the work been done, that all classes of the people had made up their minds about it long before any speaker of eminence had touched it in Congress. The politicians were little aware of this. When Mr. Adams threw himself so gallantly into the breach, it is said he wrote anxiously home to know whether he would be supported in Massachusetts, little aware of the outburst of popular gratitude which the northern breeze was even then bringing him, deep and cordial enough to wipe away the old grudge Massachusetts had borne him so long. Mr. Adams himself was only in favor of receiving the petitions, and advised to refuse their prayer, which was the abolition of slavery in the District of Columbia. He doubted the power of Congress to abolish. His doubts were examined by Mr. William Goodell, in two letters of most acute logic, and of masterly ability. If Mr. Adams still retained his doubts, it is certain at least that he never expressed them afterward. When Mr. Clay paraded the same objections, the whole question of the power of Congress over the District was treated by Theodore D. Weld in the fullest manner, and with the widest research,—indeed, leaving nothing to be added: an argument which Dr. Channing characterized as "demonstration," and pronounced the essay "one of the ablest pamphlets from the American press." No answer was ever attempted. The best proof of its ability is that no one since has presumed to doubt the power. Lawyers and statesmen have tacitly settled down into its full acknowledgment.

The influence of the Colonization Society on the welfare of the colored race was the first question our movement encountered. To the close logic, eloquent appeals, and fully sustained charges of Mr. Garrison's letters on that subject no answer was ever made. Judge Jay followed with a work full and able, establishing every charge by the most patient investigation of facts. It is not too much to say of these two volumes, that they left the Colonization Society hopeless at the North. It dares never show its face before the people, and only lingers in some few nooks of sectarian pride, so secluded from the influence of present ideas as to be almost fossil in their character.

The practical working of the slave system, the slave laws, the treatment of slaves, their food, the duration of their lives, their ignorance and moral condition, and the influence of Southern public opinion on their fate, have been spread out in a detail and with a fulness of evidence which no subject has ever received before in this country. Witness the words of Phelps, Bourne, Rankin, Grimke, the Anti-slavery Record, and, above all, that encyclopaedia of facts and storehouse of arguments, the Thousand Witnesses of Mr. Theodore D. Weld. He also prepared that full and valuable tract for the World's Convention called Slavery and the Internal Slave-Trade in the United States, published in London in 1841. Unique in antislavery literature is Mrs. Child's Appeal, one of the ablest of our weapons, and one of the finest efforts of her rare genius.

The Princeton Review, I believe, first challenged the Abolitionists to an investigation of the teachings of the Bible on slavery. That field had been somewhat broken by our English predecessors. But in England the pro-slavery party had been soon shamed out of the attempt to drag the Bible into their service, and hence the discussion there had been short and some-what superficial. The pro-slavery side of the question has been eagerly sustained by theological reviews and doctors of divinity without number, from the half-way and timid faltering of Wayland up to the unblushing and melancholy recklessness of Stuart. The argument on the other side has come wholly from the Abolitionists; for neither Dr. Hague nor Dr. Barnes can be said to have added any thing to the wide research, critical acumen, and comprehensive views of Theodore D. Weld, Beriah Green, J. G. Fee, and the old work of Duncan.

On the constitutional questions which have at various times arisen,—the citizenship of the colored man, the soundness of the "Prigg" decision, the constitutionality of the old Fugitive Slave Law, the true construction of the slave-surrender clause,—nothing has been added, either in the way of fact or argument, to the works of Jay, Weld, Alvan Stewart, E. G. Loring, S. E. Sewall, Richard Hildreth, W. I. Bowditch, the masterly essays of the Emancipator at New York and the Liberator at Boston, and the various addresses of the Massachusetts and American Societies for the last twenty years. The idea of the antislavery character of the Constitution,—the opiate with which Free Soil quiets its conscience for voting under a pro-slavery government,—I heard first suggested by Mr. Garrison in 1838. It was elaborately argued that year in all our antislavery gatherings, both here and in New York, and sustained with great ability by Alvan Stewart, and in part by T. D. Weld. The antislavery construction of the Constitution was ably argued in 1836, in the Antislavery Magazine, by Rev. Samuel J. May, one of the very first to seek the side of Mr. Garrison, and pledge to the slave his life and efforts,—a pledge which thirty years of devoted labors have redeemed. If it has either merit or truth, they are due to no legal learning recently added to our ranks, but to some of the old and well-known pioneers. This claim has since received the fullest investigation from Mr. Lysander Spooner, who has urged it with all his unrivalled ingenuity, laborious research, and close logic. He writes as a lawyer, and has no wish, I believe, to be ranked with any class of anti-slavery men.

The influence of slavery on our Government has received the profoundest philosophical investigation from the pen of Richard Hildreth, in his invaluable essay on Despotism in America,—a work which deserves a place by the side of the ablest political disquisitions of any age.

Even the vigorous mind of Rantoul, the ablest man, without doubt, of the Democratic party, and perhaps the ripest politician in New England, added little or nothing to the store-house of antislavery argument. * * * His speeches on our question, too short and too few, are remarkable for their compact statement, iron logic, bold denunciation, and the wonderful light thrown back upon our history. Yet how little do they present which was not familiar for years in our anti-slavery meetings! Look, too, at the last great effort of the idol of so many thousands,—Mr. Senator Sumner,—the discussion of a great national question, of which it has been said that we must go back to Webster's reply to Hayne, and Fisher Ames on the Jay treaty, to find its equal in Congress,—praise which we might perhaps qualify, if any adequate report were left us of some of the noble orations of Adams. No one can be blind to the skilful use he has made of his materials, the consummate ability with which he has marshalled them, and the radiant glow which his genius has thrown over all. Yet, with the exception of his reference to the antislavery debate in Congress in 1817, there is hardly a train of thought or argument, and no single fact in the whole speech, which has not been familiar in our meetings and essays for the last ten years. * * *

The relations of the American Church to slavery, and the duties of private Christians, the whole casuistry of this portion of the question, so momentous among descendants of the Puritans,—have been discussed with great acuteness and rare common-sense by Messrs. Garrison, Goodell, Gerrit Smith, Pillsbury, and Foster. They have never attempted to judge the American Church by any standard except that which she has herself laid down,—never claimed that she should be perfect, but have contented themselves by demanding that she should be consistent. They have never judged her except out of her own mouth, and on facts asserted by her own presses and leaders. The sundering of the Methodist and Baptist denominations, and the universal agitation of the religious world, are the best proof of the sagacity with which their measures have been chosen, the cogent arguments they have used, and the indisputable facts on which their criticisms have been founded. In nothing have the Abolitionists shown more sagacity or more thorough knowledge of their countrymen than in the course they have pursued in relation to the Church. None but a New-Englander can appreciate the power which church organizations wield over all who share the blood of the Puritans. The influence of each sect over its own members is overwhelming, often shutting out, or controlling, all other influences. We have Popes here, all the more dangerous because no triple crown puts you on your guard. * * * In such a land, the Abolitionists early saw, that, for a moral question like theirs, only two paths lay open: to work through the Church; that failing, to join battle with it. Some tried long, like Luther, to be Protestants, and yet not come out of Catholicism; but their eyes were soon opened. Since then we have been convinced that, to come out from the Church, to hold her up as the bulwark of slavery, and to make her shortcomings the main burden of our appeals to the religious sentiment of the community, was our first duty and best policy. This course alienated many friends, and was a subject of frequent rebuke from such men as Dr. Channing. But nothing has ever more strengthened the cause, or won it more influence; and it has had the healthiest effect on the Church itself. * * *

Unable to command a wide circulation for our books and journals, we have been obliged to bring ourselves into close contact with the people, and to rely mainly on public addresses. These have been our most efficient instrumentality. For proof that these addresses have been full of pertinent facts, sound sense, and able arguments, we must necessarily point to results, and demand to be tried by our fruits. Within these last twenty years it has been very rare that any fact stated by our lecturers has been disproved, or any statement of theirs successfully impeached. And for evidence of the soundness, simplicity, and pertinency of their arguments we can only claim that our converts and co-laborers throughout the land have at least the reputation of being specially able "to give a reason for the faith that is in them."