The Dictionary of Scientific Biography is a scholarly reference work that was published from 1970 through 1980 by publisher Charles Scribner's Sons, with main editor the science historian Charles Gillispie, from Princeton University. It consisted of sixteen volumes. It is supplemented by the New Dictionary of Scientific Biography. Both these publications are included in a later electronic book, called the Complete Dictionary of Scientific Biography. The Dictionary of Scientific Biography is a scholarly English-language reference work consisting of biographies of scientists from antiquity to modern times but excluding scientists who were alive when the Dictionary was first published. It includes scientists who worked in the areas of mathematics, physics, chemistry, biology, and earth sciences. The work is notable for being one of the most substantial reference works in the field of history of science, containing extensive biographies on hundreds of figures. It gives information about both the personal biography and in considerable detail about the scientific contributions. Engineers, physicians, social scientists and philosophers only appeared "when their work was intrinsically related to the sciences of nature or to mathematics." Though the Dictionary has worldwide coverage, the editors write that it focuses most on Western scientists, due to the limited availability of scholarship about Asian, Indian and Islamic historical scientists at the time. The articles in the Dictionary are typically 1–5 pages and are written by eminent historians of science. All articles list a selection of the original works of the subject, as well as a comprehensive list of the secondary literature about them (which may be in any language), including early works as well as more contemporary ones. The first volume of the Dictionary was first put out in 1970, under the general editorship of Charles Coulston Gillispie. Charles Scribner Jr., the head of Charles Scribner's Sons initiated the discussions with Gillispie and took a special interest in it.