The text of the novel is based on the first edition of 1847. For the Fourth Edition, the editor collated the 1847 text with the two modern texts (Norton's William J. Sale collation and the Clarendon), and found a great number of variants, including accidentals. This discovery led to changes in the body of the Norton Critical Edition text that are explained in the preface. New to "Backgrounds and Contexts" are additional letters, a compositional chronology, related prose, and reviews of the 1847 text. "Criticism" collects five important assessments of Wuthering Heights , three of them new to the Fourth Edition, including Lin Haire-Sargeant's essay on film adaptations of the novel. About the series : No other series of classic texts equals the caliber of the Norton Critical Editions . Each volume combines the most authoritative text available with the comprehensive pedagogical apparatus necessary to appreciate the work fully. Careful editing, first-rate translation, and thorough explanatory annotations allow each text to meet the highest literary standards while remaining accessible to students. Each edition is printed on acid-free paper and every text in the series remains in print. Norton Critical Editions are the choice for excellence in scholarship for students at more than 2,000 universities worldwide.