Special issue on Black Dialect: Historical and Descriptive Issues'' edited by William A. Stewart. (RS)

Describes an experiment which can be used to provide an introduction to study of reaction mechanisms and training in use of simple analytical and instrumental techniques. (PS)

A device which provides an inexpensive means for making precise studies of the kinetics of gas molecules is discussed. Two experiments are described: (1) Measurement of the vibrational relaxation time of gas molecules and (2) determination of intermolecular forces in molecules. (Author/DF)

Research supported in part by grants from the National Institute of Child Health and Human Development. (RS)

Phenomenon of effect of magnetic field on plant growth provides wide opportunities for research in classrooms. Using moderately powerful magnets, seed growth patterns can be observed in pre-germination treatment, germination period exposure and under many other conditions. Such research may enable understanding magnetotropism more clearly. (PS)

Research performed, in part, while the author was a research assistant at the Wisconsin Research and Development Center for Cognitive Learning; remainder conducted at the University of Texas under a National Science Foundation - USDP grant. (VM)