Presents theoretical and experimental observations made with a musical toy called Hummer consisting of a corrugated flexible plastic tube about three-feet long and one-inch diam open at both ends. Included are descriptions of three new instruments: the Water Pipe, the Gas-Pipe Corrugahorn Bugle, and the Gas-Pipe Blues Corrugahorn. (CC)

The use of the Solvay process to exemplify certain principles in freshman courses can be extended into the areas of chemical economics and environmental pollution. (Author/DF)

Promoting steady enthusiam and personal affirmation in teaching, the author describes a program in Tennessee called the Living Curriculum. (Editor)

Ideas on the philosophical base for the development of industrial arts curriculum. (GB)

Presented is an alternative approach to teaching the Physical Science Study Committee (PSSC) wave model of light, using microwaves. Effectiveness of the alternate approach was determined by student achievement of six objectives. Both experimental and conventional PSSC methods were satisfactory for reaching the objectives. (DS)

Argues that chemistry has major implications for our understanding of the nature of things including ourselves. Illustrations have been drawn from the chemical elements, chemical equilibria, and chemical entropy. Chemistry should not be presented as something justified only by its practical results while the other sciences raise the ultimate…

The techniques of radioactive dating, thermoluminescence dating, cesium magnetometer detecting, x-ray flourescence analysis, and neutron radiography are briefly explained. Examples are given in the use of techniques in determining age and composition of paintings, ceramics, and archeological finds. Included is a history of Lawrence Radiation…