language." Allowing that Jonson's remark may only apply to the Calendar, Bruce Robert McElderry Jr. states, after a detailed investigation of The Faerie Queenes diction, that Jonson's statement "is a skillful epigram; but it seriously misrepresents the truth if taken at anything like its face value". The number of archaisms used in the poem is not overwhelming—one source reports thirty-four in Canto I of Book I, that is, thirty-four words out of a total forty-two hundred words, less than one percent. According to McElderry, language does not account for the poem's archaic tone: "The subject-matter of The Faerie Queene is itself the most powerful factor in creating the impression of archaism." Examples of medieval archaisms (in morphology and diction) include: Infinitive in -en: vewen 1. 201, 'to view'; Prefix y- retained in participle: yclad, 1. 58, 254, 'clad, clothed'; Adjective: combrous, 1. 203, 'harassing, troublesome'; Verb: keepe, 1. 360, 'heed, give attention to'. Adaptation and derivative works Numerous adaptations in the form of children's literature have been made – the work was a popular choice in the 19th and early 20th century with over 20 different versions written, with the earliest being E. W. Bradburn's Legends from Spencer's Fairy Queen, for Children (1829), written in the form of a dialogue between mother and children – the 19th-century versions oft concentrated on the moral aspect of the tale. In terms of the English-speaking world adaptions of the work were relatively more popular in the United Kingdom than in the United States compared to contemporary works like Bunyan's The Pilgrim's Progress, presumably due to the differences in appeal of the intended audiences (Royal court vs Ordinary people) and their relative appeal to the general American readership. The Edwardian era was particularly rich in adaptation for children, and the works richly illustrated, with contributing artists including A. G. Walker, Gertrude Demain Hammond, T. H. Robinson, Frank C. Papé, Brinsley Le Fanu and H. J. Ford. Additionally, Walter Crane illustrated a six-volume collection of the complete work, published 1897, considered a great example of the Arts and Crafts movement. In "The Mathematics of Magic", the second of Fletcher Pratt and L. Sprague de Camp's Harold Shea stories, the modern American adventurers Harold Shea and Reed Chalmers visit the world of The Faerie Queene, where they discover that the greater difficulties faced by Spenser's knights in the later portions of the poem are explained by