L. Robert Kohls ; with an introd. by David S. Hoopes. edited and with an introd. by Harold Wolpe. by Robert Powell ; with an introductory essay by Hee Limin. Sir Arthur Conan Doyle ; with an introduction by David Stuart Davies. Thomas Hobbes ; with an introd. by Herbert W. Schneider. Thomas Hope ; with a new introd. by David Watkin. edited with an introd. by Stanley R. Ross.