The Author of these Journals requested me, in January 1865, a few days before his death, to take charge of them with a view to publication at some future time. He left that time to my discretion, merely remarking that Memoirs of this kind ought not, in his opinion, to be locked up until they had lost their principal interest by the death of all those who had taken any part in the events they describe. He placed several of the earlier volumes at once in my hands, and he intimated to his surviving brother and executor, Mr. Henry Greville, his desire that the remainder should be given me for this purpose. The injunction was at once complied with after Mr. Charles Greville’s death, and this interesting deposit has now remained for nearly ten years in my possession. In my opinion this period of time is long enough to remove every reasonable objection to the publication of a contemporary record of events already separated from us by a much longer interval, for the transactions related in these volumes commence in 1818 and end in 1837. I therefore commit to the press that portion of these Memoirs which embraces the Reigns of King George IV. and King William IV., ending with the Accession of her present Majesty. In accepting the trust and deposit which Mr. Greville thought fit to place in my hands, I felt, and still feel, that I undertook a task and a duty of considerable responsibility; but from the time and the manner in which it was offered me I could not decline it. I had lived for more than five-and-twenty years in the daily intercourse of official life and private friendship with Mr. Greville. Sir George Cornewall Lewis, to whom he had previously intended to leave these Journals, died before him. After that event, deeply to be regretted on so many accounts, Mr. Greville did me the honour to select me for the performance of this duty, which was unexpected by myself; and my strong attachment and gratitude to him for numberless acts of kindness and marks of confidence bound me by every consideration to obey and execute the wishes of my late friend. In the discharge of this trust I have been guided by no other motive than the desire to present these Memorials to the world in a manner which their Author would not have disapproved, and in strict conformity with his own wishes and injunctions. He himself, it should be said, had frequently revised them with great care. He had studiously omitted and erased passages relating to private persons or affairs, which could only serve to gratify the love of idle gossip and scandal. The Journals contain absolutely nothing relating to his own family, and but little relating to his private life.