Sundials at Greenwich is the first full-scale catalog of the collection of sundials, nocturnals, and horary quadrants of the National Maritime Museum. This collection composes one of the most important reseources for the study of the history of sundials, particularly of portable sundials, and is world-renowned for its significance. Detailed entries are provided for all the instruments, and each object is illustrated, with the most significant dials photographed in color. This book is divided into the various types of sundial, and each section is arranged chronologically for ease of reference. Sundials from the Far East and from the Islamic countries are treated separately from European instruments; nocturnals and horary quandrants are grouped in their own sections; and a final section is devoted to imitation instruments. This volume is of great importance to historians of science interested in the development of scientific instruments, and supplies a comprehensive documentation of an important scientific collection. It will be of use to researchers in the history of science, astronomy, navigation and scientific instruments and is also recommended to all collectors of sundials.