It is by the Review of the Letters to Sir Horace Mann, that the severest condemnation has been passed and the most unjust impressions given, not only of the genius and talents, but of the heart and character, of Lord Orford. The mistaken opinions of the eloquent and accomplished author (5) of that review are to be traced chiefly to the same causes which defeated the intentions of the two first biographers. In his case, these causes were increased, not only by no acquaintance with his subject, but by still farther removal from the fashions, the social habits, the little minute details, of the age to which Horace Walpole belongs,-an age so essentially different from the business, the movement, the important struggles, of that which claims the critic as one of its most distinguished ornaments. A conviction that these reasons led to his having drawn up, from the supposed evidence of Walpole’s works alone, a character of their author so entirely and offensively unlike the original, has forced the pen into the feeble and failing hand of the writer of these pages,-has imposed the pious duty of attempting to rescue, by incontrovertible facts, acquired in long intimacy, the memory of an old and beloved friend, from the giant grasp of an author and a critic from whose judgment, when deliberately formed, few can hope to appeal with success. The candour, the good-nature of this critic,-the inexhaustible stores of his literary acquirements, which place him in the first rank of those most distinguished for historical knowledge and critical acumen,-will allow him, I feel sure, to forgive this appeal from his hasty and general opinion, to the judgment of his better informed mind, on the peculiarities of’ a character often remarkably dissimilar from that of his works.