Discusses a non-traditional unstructured laboratory approach designed to acquaint students with analytical techniques through the identification of two unknowns, one as a single component and one in a mixture, and the reading for the course facilitated by a detailed report on nine syntheses recently reported in the literature. (CP)

Recommends that teacher and student be provided with the broadest possible spectrum of meaningful and feasible experiments in which the comfort of the experimental animal is protected by the design of the experiment. (BR)

This article describes a series of energy conversion experiments in the senior laboratory course at the University of California, Berkeley. (IR)

Through the YMCAs in the United States, more than 7,000 teen agers have participated in sensitivity training experiences. Interactional programs using sensitivity training with teen agers have been introduced, and the results are sufficiently positive in the YMCA to warrant wider exploration with this type of program for young people. (Author)