Two well-known, contemporary Verne scholars have published accurate, closely researched translations in reader-friendly English. Oxford University Press published an authoritative text by UK Vernian William Butcher in 1992, then a revised edition in 2008; (); supported by a comprehensive bibliography and critical materials, Butcher's renderings and annotations point up the novel's erotic undertones. Appearing in 2010, a still-later translation by U.S. Vernian Frederick Paul Walter focuses on communicating Verne's paleontology and adroit comedy; including an extensive introduction and textual notes, it's available in an omnibus of five of Walter's Verne translations entitled "Amazing Journeys: Five Visionary Classics" and published by State University of New York Press; ().