Surveyed are the etymology and the reason scientists coined a specific name for a newly discovered element. Approaches to naming from a historical viewpoint are considered. (CW)

Reports on a study into how the history of chemistry is being taught in colleges and universities. Results indicate that courses on the history of chemistry are hardly ever required of chemistry majors, and they are offered in only 10 percent of American Chemical Society approved chemistry departments. (TW)

Presents a chronology of scientific efforts designed to determine the age of the earth. Summarizes scientists' attempts at dating the planet's formation, including the examination of lead in the environment, the calculation of the earth's cooling temperature and time, the study of geological sedimentation and the analysis of moon rocks. (TW)

Discussed is the importance of valence bond theory on the quantum-mechanical theory of chemical structure and the nature of the chemical bond. Described briefly are early VB theory, development of VB theory, modern versions, solid-state applications, models, treatment in textbooks, and flaws in criticisms of valence bond theory. (KR)

Reviewed is the discovery, nuclear and chemical properties, and uses of an isotope of Americium (Am-241). Production and separation techniques used in industry are emphasized. Processes are illustrated in flow sheets. (CW)