Jack Stillinger establishes and documents the existence of numerous different authoritative versions of Coleridge's best-known poems: sixteen or more of The Eolian Harp, for example, eighteen of The Rime of the Ancient Mariner, and comparable numbers for This Lime-Tree Bower, Frost at Midnight, Kubla Khan, Christabel, and Dejection: An Ode. Such multiplicity of versions raises interesting theoretical and practical questions about the constitution...