The Earl of CARLISLE, formerly Lord Morpeth, delivered recently two lectures before the Mechanics' Institute at Leeds. One of these, upon the Poetry of Pope, was a pleasant criticism and eulogy upon the poet. The second lecture was devoted to an account of his own travels in America, some eight years since; being the first account he has publicly given of his observations and impressions. In speaking of persons he confined himself to those whose historical celebrity has made them in a manner public property; and his observations upon individuals and institutions were characterized throughout by a tone of moderation and good-feeling. The phenomenon of a live lord lecturing before an association of mechanics seems to have startled the good people of Leeds no little; and to have caused an excitement that reminds one of an American Jenny Lind ovation viewed through a telescope reversed. A due sense was manifested of the noble lord's condescension in appearing in a character so novel as that of a public lecturer, and afterward revising the lectures for publication. Copies of the lectures are to be sent to similar associations in the neighborhood that they may be read to the members. The lectures, though very creditable to his lordship, would certainly not have received such an enthusiastic reception had the author been Mr. Brown or Smith. WALTER SAVAGE LANDOR writes through the Examiner, to and at Lord Brougham, respecting the claims upon the nation of literary men in general, and of Southey in particular. He says that since Southey commenced writing in behalf of the Church, more than twenty millions have been paid to the English bishops, of which the Bishop of London--(the Master C.J. London of the exquisite satire in the last Number of the New Monthly, entitled "A Crisis in the Affairs of Mr. John Bull," than which nothing keener has been written since the days of Swift, and which is worthy of forming a supplementary chapter to the "Tale of a Tub")--has received well-nigh a million; all of whom have not done for the Church a tithe of what Southey accomplished. He thinks that if money enough to reward amply a half-score of the men whose genius has adorned and exalted their age, can be expended in building stables for a prince hardly tall enough to mount a donkey, the nation would not be ruined by appropriating five hundred a year to six, and three hundred a year to as many more of the chief living geniuses.