He wrote two versions of his introductory analysis, a longer version published in the original 1885 edition of his translation, in which he severely criticized Cervantes's writing style, and a more concise version (the one published in most editions of the translation), in which some of the criticisms have been omitted.
In his translation from the original 1885 edition, he wrote two versions of an introductory analysis: a longer version that included severe criticism of Cervantes’s writing style, which was later shortened and published more widely without all the criticisms.