The Slave Trade, obviously from the debate on Friday last, will be made an election tool to work at the Dissenters with, and gain the hurra' of the lower people. When Pitt shall come forward to unite humanity and justice with policy and the public necessities, and produce early next session some measures of legislation for the colonies, and of regulation in the trade, I foresee the clamour will be "What! regulate rapine and murder! and legislate slavery in the British dominions!" and all of the measure, as to the abolition of the trade which is wisely put by, will be artfully taken up to discredit what is humanely done. And this is the mischief of leaving such business to the good and brilliant, but little-wise or solid Wilberforce, who did not know, that in a business of such extent as to the interests of the public, their feelings should not have been excited to go beyond the mode or degree of practicable remedy to the evil; that to give hopes of something is to render the full accomplishment more grateful; and that to anticipate the most that can be done, is to render the doing less thankless, and as nothing. Adopting the strongest wishes for the full abolition of slavery and the Slave Trade, was it not folly in the extreme to throw out the idea of full abolition previous to investigation of how far it was possible to go, and where a stop of necessity must be made. Wilberforce hath everywhere canvassed addresses for total abolition!

These passages, collected from the Correspondence, possess some historical value from their immediate bearing upon the state and action of opinion, at the time when this question was originally introduced into Parliament. Wilberforce was confessedly not considered a practical politician, and his support was regarded by Pitt with apprehension. His sincerity was admitted by everybody, but there seems to have been a strange want of confidence in his judgment. By agitating the country for total abolition, before the public had had an opportunity of investigating the bearings of the question, he showed more zeal than discretion, and seriously embarrassed the proceedings of the Minister. Wilberforce had the best intentions in the world, but, like other politicians, sometimes erred in carrying them out.

Not the least charm of these letters is the insight they afford into the characters of the principal persons concerned in them; and the slightest passages that assist us to a nearer view of men who occupied so large a space in their own times, and whose actions enter into the history of the country, have a distinct attraction in this point of view.

Allusion has already been made to the sensitiveness of Lord Buckingham on personal points of form and etiquette, which sometimes disposed him to fancy discourtesy or indifference where none was really contemplated. It can hardly be supposed that this trait could have been generated in the mind of a statesman of such tried ability and acknowledged influence from any distrust in his own powers, or in the high position he held amongst his contemporaries; and it must, therefore, be regarded entirely as a matter of temperament. It was the weakness of a nature capable of the sincerest attachments, and jealous of every appearance of neglect in those whose regards it cherished. Between his Lordship and Lord Sydney there existed a strict bond of friendship. It had been tested in the struggles of public life, and cemented by many interchanges of confidence in their private relations. Lord Sydney, however, appears upon some occasion to have forgotten, in his official capacity as Secretary of State, the formality with which the Lord-Lieutenant of Ireland should have been addressed, and to have lapsed, perhaps unconsciously, into that familiar tone which, no doubt, sat more easily upon him in writing to his friend, Lord Buckingham. The particular subject is of no importance; but, whatever it was, Lord Buckingham was dissatisfied with his correspondent's style, and indicated so much to him. Here is Lord Sydney's answer, marked "private;" admirable as a specimen of excellent feeling and indomitable good-humour.

LORD SYDNEY TO THE MARQUIS OF BUCKINGHAM.

Grosvenor Square, Feb. 6th, 1788.

My dear Lord,

I heartily congratulate you upon the success of two very important questions, which has been determined so much to the advantage of the public, and to the credit of your Lordship's Administration. I should have been very sorry if the style of any letter of mine should have had the effect of diminishing in the least degree the pleasure which you must have received from the news which had just reached you from the House of Commons. I agree with you that forms must be observed, and surely none more exactly than those which consist in the mutual respect and civility which ought to appear in the correspondence between two of the principal offices of Government. In a private one between the Marquis of Buckingham and Lord Sydney, the latter will always be inclined to be as little punctilious as any man living. But as to that in question, I must say, that I had no reason to suppose that my style could seem objectionable, when I had endeavoured to imitate that of the letter to which mine was an answer. To leave this subject, you may depend upon my being as cautious as possible in future, to avoid any deviation from the usual form; but in the present case, the King's leave of absence being already given, it is not proper that any alteration should be made.

I have seen the Duchess of Rutland to-day for the first time at her Grace's desire. She expressed herself in the strongest terms of gratitude towards your Lordship, for your attention in transmitting to her the extracts from the addresses of both Houses of Parliament, as well as for your letter upon the subject. Her manner and appearance was truly affecting, particularly to one who has had a strong attachment to the Rutland family all his life. She is very much pleased with the marks of respect which have been shown by all ranks of people to the memory of the poor Duke, and said that she must always love Ireland. I never saw more propriety, or a more unaffected general behaviour in my life.

I have finished Mr. Anselm Nugent's business to-day. I do not think that His Majesty quite likes so total a dispensation with an Act of Parliament; but agreed to it with great cheerfulness, and with very gracious expressions of his desire to do what was agreeable to you.