Another important work of this year (1570) was Roger Ascham's _Scholemaster_, in quarto. In 1571 Day was busy with Church matters. There was just then much talk of Church discipline, and it shows itself in the _Reformatio Legum Ecclesiasticarum_, a quarto of some 300 pages, published by him this year. In this book we find a new device used by Day. It represents two hands holding a slab upon which is a crucible with a heart in it, surrounded by flames, the word 'Christus' being on the slab. From the wrists hangs a chain, and in the centre of this is suspended a globe, and beneath that again is a representation of the sun. Round the chain is a ribbon with the words '_Horum Charitas_.' This device was placed on the title-page, which was surrounded by a neat border of printers' ornaments. The _Booke of certaine Canons_, 4to, was another publication of this year for the due ordering of the Church. This, like most public documents, was in a large black letter. There were also 'Articles of the London Synod of 1562.' As a specimen of the religious sermons or discourses of the time, we have a very good example in another of Day's publications in 1571, a reprint of _The Poore Mans Librarie_, a discourse by George Alley, Bishop of Exeter, upon the First Epistle of St. Peter, which made up a very respectable folio, printed in Day's best manner, and with a great number of founts. But Day's prosperity roused the envy of his fellow-stationers, and they tried their best to hinder the sale of his books and cause him annoyance. This opposition took a violent form in 1572, when Day, whose premises at Aldersgate had become too small to carry on his growing business, his stock being valued at that time between £2000 and £3000, obtained the leave of the Dean and Chapter of St. Paul's to set up a little shop in St. Paul's Churchyard for the sale of his books. The booksellers appealed to the Lord Mayor, who was prevailed upon to stop Day's proceedings, and it required all the power and influence of Archbishop Parker, backed by an order of the Privy Council, to enable the printer to carry out his project.[4] The Archbishop meanwhile had been busy furnishing replies to Nicholas Sanders' book _De Visibili Monarchia_, and amongst those whom he selected for the work was Dr. Clerke of Cambridge, who accordingly wrote a Latin treatise entitled _Fidelis Servi subdito infideli Responsio_. From a letter written by the Archbishop to Lord Burleigh at this time, we learn that John Day had cast a special fount of Italian letter for this book at a cost of forty marks.[5] By Italian letter is here meant Roman, and not Italic, as Mr. Reed supposes, for the _Responsio_ was printed in a new fount of that type, clear, even, and free from abbreviations.