Efforts to establish a library for laboratory instructional materials is being initiated by a group of concerned university educators. The main function of this library will be to collect descriptions of biological systems and supporting materials that are effective in laboratory instruction. Contributors are being solicited. (Author/MA)

Describes the operation of the computer program and a sample print-out is provided. (CP)

Describes two procedures for the conversion of eugenol to vanillin

Reviews scientific research and research projects which have been undertaken by secondary level students. (SL)

Presents a differential thermal analysis system constructed mainly from commercially available modular units. (SL)

Callus induction from species of Haworthia can be done quickly in the laboratory with minimal equipment to study tissue dedifferentiation and cellular redifferentiation. It is shown that the cultured cell can also be used to study and evaluate the effects of various mutagens, carcinogens, and pesticides in controlled environments. (Author/MA)

Discusses the formation of lipid peroxides as important degradative biomolecules. (SL)

States that statutory requirements of demonstrated medical effectiveness are far from being clearly resolved. Cites some common experimental practices which can provide misleading results. (CP)

Two experiments were conducted to investigate the effects of positive and negative reinforcements upon black college students. The perceived objectivity of white evaluators was compared to that of black evaluators. Perceived objectivity being the social reinforcement likely to be accepted, internalized, and complied with in proportion to the…

Activity sheets posing problems in which students must examine and test various possibilities are presented. (SD)

Described are the morphology, eating habits, and habitats of three types of Bryozoan colonies. Information on where to collect these organisms and how they can be cultured are included. Suggestions are given for lab experiments that can be done with type three colonies and Euglena. (MA)

At the Center for Biomedical Education at the City University of New York, nutrition is integrated into the chemistry-biochemistry sequence of a six-year B.S.-M.D. program. Students perform an actual analysis of a sample of their own food, learning basic techniques and concepts, and also carry on experiments with rats on other diets. (Editor/LBH)

After discussing the objectives and challenges of mathematics courses for preservice elementary teachers, and their instructional implications, the author describes an experimental laboratory-based course. Achievement of those taking this course is compared with achievement in a lecture course. (SD)

Suggests ways in which hens' egg vitelline membranes can be used to demonstrate cell traction effects. Reviews procedures for using and culturing the membranes and identifies topic areas for student projects. (ML)

The goal of many colleges is to make the organic chemistry laboratory completely flameless by using electric heating equipment. Benefits of eliminating the Bunsen burner, electrical heating equipment and accessories, hazards remaining in flameless laboratories, and design standards related to laboratory liability are the major topic areas…