This new edition of the highly regarded Biographical Encyclopedia of Scientists focuses on the achievements of 2400 scientists, explaining the nature and importance of those achievements. The book covers traditional science, including physics, chemistry, biology, astronomy, and earth science, along with mathematics, engineering, technology, and computer science. It also includes key figures from anthropology, psychology, and the philosophy of science. This fully updated edition features pronunciation guidelines, quotations, website links, and suggestions for further reading. Each cross-referenced entry includes chronology, institution, publication, and discipline.