When I first began to collect materials for the writing of the life of Poggio Bracciolini, I was much indebted to the kindness of my late friends Mr. Roscoe and Mr. William Clarke, who liberally allowed me the free use of the scarce books which they possessed, illustrative of the revival of letters in the fourteenth and fifteenth centuries. From various passages which occur in some of these works, I was convinced that there existed in the public libraries of the city of Florence several manuscripts, from which much information might be gathered respecting the history of the scholar, to whose early exertions for the promotion of sound learning I wished to do justice. In consequence of this persuasion, I felt a strong desire to visit the Tuscan capital, for the purpose of copying and analyzing such documents, suitable to my purpose, as I might there discover. But my professional engagements not allowing me to be absent from home for the requisite length of time, I was obliged, however reluctantly, to give up this project as impracticable, and to proceed in my task with the aid of such printed books as were accessible to me. Soon after the publication of the first edition of this work, however, I found that a very interesting portion of the documents which I wished to inspect existed in my native country. The late Col. Johnes, of Hafod, having read my Life of Poggio, wrote to me in the spring of the year 1803, to inform me that he had in his library a manuscript volume of Letters written by my hero, which he would with pleasure permit me to examine, on the condition of my coming over to Hafod for that purpose. So frank an invitation I eagerly accepted, and at my earliest leisure I repaired to the Colonel’s romantic residence, where I was received with that elegant hospitality, by the exercise of which Mr. Johnes was distinguished, even in a country where strangers are generally greeted by the resident gentry with a hearty welcome. On a cursory examination of the volume which had thus attracted me to the wilds of Cardiganshire, and which was beautifully written on the finest vellum, I found that it contained many letters of Poggio which had not been printed. From these I immediately commenced making extracts of such passages as tended to throw new light on the particulars of Poggio’s history; and this task I resumed at future visits which I paid to Hafod, till, at length, the intercourse between Mr. Johnes and myself ripening into the confidence of intimate friendship, my kind host was pleased to present me with the volume itself, which I keep among the most precious of my few literary treasures, and which I especially value, as the gift of an accomplished and warm hearted man, whose memory I shall gratefully cherish to the close of my mortal existence.