“Dictionarium seu Latinæ Linguæ Thesaurus.” This work was not completed in 1528, but during this year and the two years following, its preparation was in progress. Robert’s part in the undertaking was by no means restricted to the planning, the printing, and the publishing. Not having succeeded in securing the services of a competent editor, he finally decided himself to attempt the task of the compilation and the editing. Having secured from scholarly friends a favourable opinion on the first few sheets prepared for the press, he was encouraged to persevere, and applied himself to the task day and night for more than two years, during which he had also on his hands the responsibilities of his printing and publishing business. The work was adopted at once by the University of Paris, and, superseding the existing Latin dictionaries (of which the “Cornucopia” of Aldus Manutius, issued in 1513, was perhaps the most important), it remained for many years the standard authority on its subject, as well as a monument to the learning and industry of a representative publisher. 1529. “Plinii Epistolæ, Panegyricus de Viris Illustribus, Suetonius de Claris Grammaticis,” and “Terentii Opera.” In this last, Robert, with great trouble, restored the Greek passages cited by Donatus. In all preceding editions, blanks appeared where these Greek citations should have been inserted. The publisher claimed that he had also been able, by collation of the best MSS., to correct no less than 6000 errors that had found their way into texts previously accepted. Between the years 1529 and 1551, Robert printed of “Terence” no less than eleven editions. 1530. “Plauti Opera,” in folio, and “Rhetores Latini.” 1531. The first edition of the previously referred to “Dictionary of the Latin Language” bears date this year; it is printed in folio. In the course of twelve years, two later and revised editions were issued. The general acceptance of the Dictionary as the best work on its subject made it an object for the rapacity of a number of unscrupulous reprinters, and various unauthorised reprints appeared, some of which were seriously incorrect or incomplete. Estienne appears to have accepted with philosophy the inevitable injury to his business interests, but complained bitterly at the loss to his repute as a scholar, caused by foisting upon the public, over his name, slovenly and inaccurate work.