The starting of Lettou’s press in London, in 1480, may probably account for some of the changes introduced by Caxton in that year. His first indulgence, printed this year in the large type, was at once thrown into the shade by the editions of the same indulgence issued by Lettou in his small neat letter, which was much better adapted for such work. Lettou also in this year used signatures, Caxton doing the same. The competition caused Caxton to make his fount of small type, and to introduce many other improvements. It was about this time that he introduced woodcuts into his books; and the first book in which we find then is the _Mirrour of the World_. The cuts in this volume may be divided into two sets, those given for the first time by Caxton, and those copied from his predecessors. The first are ordinary woodcuts, the second what we should call diagrams. The woodcuts are of the poorest design and coarsest execution. Several are of a master with four or five pupils, others of single figures engaged in scientific pursuits. The diagrams are more or less carefully copied from the MSS.: they are numbered in the table of contents as being eight in part I., nine in part II., and ten [X. being misprinted for IX.] in part III. Of the eight belonging to part I., Nos. 2 and 3 are put to their wrong chapters, and consequently No. 4 is omitted altogether. The diagrams to part II. are wrongly drawn, and in some cases misplaced. The nine diagrams to part III. are the most correct. Some writers have contended that the cuts in Caxton’s books are from metal and not from wood-blocks; but some of them which are found in use at a considerably later date show marks of worm holes; a conclusive proof of the material being wood. To the year 1480 we can ascribe seven books, almost all in the new type, No. 4. These are the French and English phrase-book, Lidgate’s _Curia Sapientiæ_, the _Chronicles of England_, and the _Description of Britain_; and three liturgical books, the _De Visitatione B.M.V._, the _Psalterium_, and a _Horæ ad usum Sarum_, the two latter printed in type 3. Of the _Horæ_, but a few leaves are known, which formed part of the wonderful find of fragments in the binding of a copy of the _Boethius_ at St. Albans Grammar School. This volume was found by Mr. Blades in 1858, and from the covers were taken no less than fifty-six half sheets of printed paper, proving the existence of three works from Caxton’s press quite unknown before, the _Horæ_ above mentioned, the _Ordinale_, and an indulgence of Pope Sixtus IV. About 1481 appeared the first English edition of _Reynard the Fox_; and in that year two other books, both dated, _Tully of Old Age_, and the _Siege of Jerusalem_.