In this same year 1480, Lettou published the _Quæstiones Antonii Andreæ super duodecim libros metaphysicæ Aristotelis_, a small folio of 106 leaves, printed in double columns, of which only one perfect copy is known, that in the Library of Sion College. The type is small, and remarkable from its numerous abbreviations. Mr. E. G. Duff in his _Early Printed Books_, p. 161, speaks of its great resemblance to those of Matthias Moravus, a Naples printer, and suggests a common origin for their types. In his _Early English Printing_, on the other hand, he writes: 'There are very strong reasons for believing that he [Lettou] is the same person as the Johannes Bremer, _alias_ Bulle, who is mentioned by Hain as having printed two books at Rome in 1478 and 1479. The type which this printer used is identical (with the exception of one of the capital letters) with that used in the books printed by John Lettou in London.' A few years later Lettou was joined by William de Machlinia. They were chiefly associated in printing law-books, but whether they had any patent from the king cannot be discovered. Only one of the five books they are known to have printed, the _Tenores Novelli_, has any colophon, and none of them has any date. The address they gave was 'juxta ecclesiam omnium sanctorum,' but as there were several churches so dedicated, the locality cannot be fixed. We next find Machlinia working alone, but out of the twenty-two books or editions that have been traced to his press, only four contain his name, and none have a date. All we can say is that he printed from two addresses, 'in Holborn,' and 'By Flete-brigge.' Mr. Duff inclines to the opinion that the 'Flete-brigge' is the earlier, but it seems almost hopeless to attempt to place these books in any chronological order from their typographical peculiarities. In the Fleet-Bridge type are two books by Albertus Magnus, the _Liber aggregationis_ and the _De Secretis Mulierum_. The type is of a black letter character, not unlike that in which the _Nova Statuta_ were printed, and is distinguishable by the peculiar shape of the capital M. In the same type we find the _Revelation of St. Nicholas to a Monk of Evesham_, a reprint of the _Tenores Novelli_, and some fragments of a _Sarum Horæ_ found in old bindings; a woodcut border was used in some parts of it. Besides these Machlinia printed an edition of the _Vulgaria Terentii_. A larger number of books is found in the Holborn types, the most important being the _Chronicles of England_, of which only one perfect copy is known. The _Speculum Christiani_ is interesting as containing specimens of early poetry, and _The Treatise on the Pestilence_, of Kamitus or Canutus, bishop of Aarhus, ran to three editions, one of which contains a title-page, and was therefore presumably printed late in Machlinia's career, _i.e._ about 1490.