Includes description of a light meter, photometer, fluid flow apparatus, and acoustic grating. (RH)

Describes a chemistry project in which lichens are identified by the analysis of the phenolic substances that they biosynthesize. (MLH)

Describes a machine which demonstrates the statistical bases of chemical equilibrium, and in doing so conveys insight into the connections among statistical mechanics, quantum mechanics, Maxwell Boltzmann statistics, statistical thermodynamics, and transition state theory. (GA)

Proposes an alternative to the classical minimum-deviation method for determining the refractive index of a prism. This new "fixed angle of incidence method" may find applications in research. (Author/GA)

Presents a simplified theoretical analysis of the variation of quantum yield with photon energy in the photoelectric experiment. Describes a way to amplify the experiment and make it more instructive to advanced students through the measurement of quantum yield of a photo cell. (GA)

This experiment is designed specifically for students with little knowledge of radical reactions and provides an introduction to the gas-phase chemistry of radicals. Experimental planning based on the student's own observation is an important component of the experiment. (Author/MA)

Describes a laboratory experiment designed to give beginning physiology students a successful experience with neurophysiological Techniques and to demonstrate some properties of sensory neurons. Pin electrodes are used to record extracellularly from mechanoreceptors in a cockroach leg. (Author/MA)

The construction of an operational amplifier for use in a chemical instrumentation course is described. (CP)

This article describes two simple undergraduate heat transfer experiments which may reinforce a student's understanding of free convection and radiation. Apparatus, experimental procedure, typical results, and discussion are included. (Author/BB)

This article describes the undergraduate ChE thermodynamics course at Drexel University and the reasons for incorporating a series of laboratory experiments into the course. Included is a list of lecture topics and a description of each of the experiments. (BB)

Uses a Group Embedded Figures Test (GEFT) as an indicator of field-independency in an investigation with college graduate students. Results reveal that GEFT scores were not affected by the treatment of 18 hours of instruction in Science Curriculum Improvement Study (SCIS) materials or by pretesting effects. (CP)

Exercises for introductory to intermediate level college students are proposed. Observations of pulsars can be used to illustrate the phenomena of dispersion and Faraday rotation of radio waves, and to illustrate the differential rotation of the galaxy. (BB)

College-level chemistry questions and satisfactory answers are provided. (CP)

Detailed instructions for use in an undergraduate level course are provided. (CP)

Explains a laboratory experiment dealing with the optical features of the human eye. Shows how to measure the magnification of the retina and the refractive anomaly of the eye could be used to measure the refractive power of the observer's eye. (GA)