Reviews current research interests in photographic chemistry, involving two proposed models for spectral sensitization of crystal defects and impurities in the photolysis reactivity and the mechanisms of development and complexation. Establishment of photographic chemistry in a chemistry curriculum is recommended. (CC)

Discusses roles played by inelastic molecular collisions in gas molecular theories and suggests the inclusion of inelastic aspects in the freshman chemistry course. (CC)

The most important result of this study was simply the illustration that the systematic analysis and experimental study of the learning of principles from text is possible. (Author)

Suggests possible ways of bridging the gap between the sciences and English instruction; a paper presented at annual convention of National Council of Teachers of English (Atlanta, November 27, 1970). (Editor/SW)

Presents the theoretical explanation of the observation that when a pen that is stuck in a hard rubber ball and dropped, the pen may bounce to several times the dropped height. Includes the procedure and models created to explain the observations. (DS)

Laboratory procedures are explained for taking benzoic acid and using it or one of its derivatives throughout an introductory lab course. Synthesis, purification, weight determination, identification of an acid, equilibrium constant, salt preparation, salt analysis, and salt solubility measurements are involved in the semester's experience. (DS)