That experiments might be made by Gutemberg with wooden types I can believe, though I have not been able to find any sufficient authority for the fact. Of the possibility of cutting moveable types of a certain size in wood, and of printing a book with them, I am convinced from experiment; and could convince others, were it worth the expense, by printing a fac-simile, from wooden types, of any page of any book which is of an earlier date than 1462. But, though convinced of the possibility of printing small works in letters of a certain size, with wooden types, I have never seen any early specimens of typography which contained positive and indisputable indications of having been printed in that manner. It was, until of late, confidently asserted by persons who pretended to have a competent knowledge of the subject, that the text of the celebrated Adventures of Theurdank, printed in 1517, had been engraved on wood-blocks, and their statement was generally believed. There cannot, however, now be a doubt in the mind of any person who examines the book, and who has the slightest knowledge of wood engraving and printing, of the text being printed with metal types. During the partnership of Gutemberg and Faust it is likely that they printed some works, though there is scarcely one which can be assigned to them with any degree of certainty. One of the supposed earliest productions of typography is a letter of indulgence conceded on the 12th of August, 1451, by Pope Nicholas V, to Paulin Zappe, counsellor and ambassador of John, King of Cyprus. It was to be in force for three years from the 1st of May, 1452, and it granted indulgence to all persons who within that period should contribute towards the defence of Cyprus against the Turks. Four copies of this indulgence are known, printed on vellum in the manner of a patent or brief. The characters are of a larger size than those of the “Durandi Rationale,” 1459, or of the Latin Bible printed by Faust and Scheffer in 1462. The following date appears at the conclusion of one of the copies: “Datum _Erffurdie_ sub anno Domini m cccc liiij, die vero _quinta decima_ mensis _novembris_.” The words which are here printed in Italic, are in the original written with a pen. A copy of the same indulgence discovered by Professor Gebhardi is more complete. It has at the end, a “_Forma plenissimæ absolutionis et remissionis in vita et in mortis articulo_,”--a form of plenary absolution and remission in life and at the point of death. At the conclusion is the following date, the words in Italics being inserted with a pen: “Datum in _Luneborch_ anno Domini m cccc l _quinto_, die vero _vicesima sexta_ mensis _Januarii_.” Heineken, who saw this copy in the possession of Breitkopf, has observed that in the original date, m cccc liiij, the last four characters had been effaced and the word _quinto_ written with a pen; but yet in such a manner that the numerals iiij might still be perceived. In two copies of this