When salt (NaCl) is introduced into a colorless flame, a bright yellow light (characteristic of sodium) is produced. Why doesn't the chlorine produce a characteristic color of light? The answer to this question is provided, indicating that the flame does not excite the appropriate energy levels in chlorine. (JN)

An attempt to stimulate interest in solar study is made by discussing how it could fit into a physics curriculum and by describing an effective installation already in use. (DF)