DAVID E. NEWTON has published extensively on chemistry and other science subjects. He is the award-winning author of numerous books, articles, and scholarly publications including The Chemical Elements, Science in the 1920s, The Ozone Dilemma, Encyclopedia of Cryptology, Chemistry of Carbon Compounds, Problems in Chemistry, Global Warming, and Encyclopedia of the Chemical Elements. Newton received his doctorate in science education from Harvard University.

• Preface Basic Research in Physics Applied Research in Physics Unsolved Problems Biographical Sketches Social Issues in Physics Documents Career Information Statistics and Data Organizations and Associations Journals and Internet Resources Glossary and Acronyms Index