 Originating from an enlargement of "The Entomologist", "The Zoologist" contained long articles, short notes, comments on current events, and book reviews covering the entire Animal Kingdom throughout the world, until "The Entomologist" was separated again in 1864.Initially, half of the space was devoted to birds, rising to two-thirds later.In 1916 "The Zoologist" was amalgamated with "British Birds" (founded 1908).