Sir--Permit me through the pages of your magazine to call the attention of the public to the learned and elegant researches in Europe of one of our countrymen, Mr. R. H. Wilde, of Georgia, formerly a member of the House of Representatives. After leaving Congress, Mr. Wilde a few years since spent about eighteen months in traveling through different parts of Europe, until he became stationary for a time in Tuscany. Here he occupied himself with researches concerning the private life of Tasso, whose mysterious and romantic love for the Princess Leonora, his madness and imprisonment, had recently become the theme of a literary controversy, not yet ended; curious in itself, and rendered still more curious by some alleged manuscripts of the poet's, brought forward by Count Alberti. Mr. Wilde entered into the investigation with the enthusiasm of a poet, and the patience and accuracy of a case-hunter; and has produced a work now in the press, in which the "vexed questions" concerning Tasso are most ably discussed, and lights thrown upon them by his letters, and by various of his sonnets, which last are rendered into English with rare felicity. While Mr. Wilde was occupied upon this work, he became acquainted with Signer Carlo Liverati, an artist of considerable merit, and especially well versed in the antiquities of Florence. This gentleman mentioned incidentally one day, in the course of conversation, that there once and probably still existed in the "Bargello," anciently both the prison, and the palace of the republic, an authentic portrait of Dante. It was believed to be in fresco, on a wall which afterward, by some strange neglect or inadvertency, had been covered with whitewash. Signor Liverati mentioned the circumstance merely to deplore the loss of so precious a portrait, and to regret the almost utter hopelessness of its recovery.