I dropped into the House of Lords last night, and heard the Bishop of London reply severally to the Duke of Newcastle and Lord Winchilsea, the first of whom muttered, and the latter bellowed something I could not hear, but I gathered that the last was on the subject of the King's letter to the Bishops. The Bishop made very pertinent answers to both, but the Duke of Wellington got up after Winchilsea, and entreated nothing might be said upon the subject, and put down discussion with that authority which the Tories dare not resist, and which he exercised on this occasion with the good sense and, above all, consideration for public convenience and disdain of party rancour which distinguish him above all men I have ever seen, and which compel one to admire him in spite of the extraordinary things he occasionally says and does. George Villiers is going Minister to Madrid, instead of Addington, who is so inefficient they are obliged to recall him, and at this moment Madrid is the most important diplomatic mission, with reference to the existing and the prospective state of things. The Portuguese contest, the chance of the King of Spain's death and a disputed succession, the recognition of the South American colonies, and commercial arrangements with this country, present a mass of interests which demand considerable dexterity and judgment; besides, Addington is a Tory, and does not act in the spirit of this Government, so they will recall him without ceremony. There is another Ambassador (Frederic Lamb) whose principles are equally at variance with those of Palmerston, and who is completely be-Metternich'd, but his removal is out of the question; he knows it, and no doubt conducts himself accordingly. George Villiers told me that he touched incidentally one day with Palmerston on Lamb's conduct in some matter relating to Lord Granville, and he found that it was sacred ground, and he only got, 'Ah, aw--yes, _Metternich_ is, I suppose, too old to mend now.' July 21st, 1853 {p.014} [Page Head: DUKE OF RICHMOND.]