Describes medieval alchemical experiments that can be reenacted in the undergraduate laboratory. (MLH)

Describes a biochemistry experiment involving the kinetics of passive diffusion of solutes across artificial membranes formed by dispersing phospholipids in aqueous medium. (MLH)

Describes a constant temperature bath consisting of a 100-ml volumetric flask surrounded by the vapors of a refluxing solvent in an outer jacket. (MLH)

Discussed are strobe photography, making a storage unit, improving a lecture-table meter, and making an electrical discharge tube. (RH)

Describes an undergraduate kinetics experiment, including advantages of this particular system, sources of error, and expected results. (MLH)

Simple soap bubbles can be used to have children make educationally valuable discoveries about how materials behave, what their properties are, and how they can be used or changed. (Author/BB)

This section of the product reference guide provides information for locating specific types of equipment used to analyze and control industrial in-plant air pollution and stack emissions. (CS)

This article discusses the use of reductive degradation as an economical and effective treatment of chlorinated hydrocarbons. Comparisons with activated carbon treatment show lower capital equipment and treatment costs. (CS)

Included are procedures for establishing continuous monitoring of ozonation systems for reliable and cost-effective operation of ozone disinfection. (CS)

Described is a 15-minute audio-tour that orients first-time visitors to the center by providing them with an organized walk through the facility and describing special features. (MP)

Describes an in-service program designed to show teachers how to read in content areas so that they can teach their students relevant skills. (MKM)

Lists laboratory instruments and equipment and the names, addresses and telephone numbers of their manufacturers. Manufacturers are listed in alphabetical and numerical order. (GA)

Trace elements and some drugs can be identified in hair and it seems likely that other organic chemicals will be identifiable in the future. Since hair is so easily collected, stored, and analyzed it promises to be an ideal complement to serum and urine analysis as a diagnostic tool. (BB)

Identifies several pieces of equipment and new products for use in college science teaching such as: (1)rotary retracting microtome; (2)airflow bench; and (3)digital stop clock. A description of each one, the price, and the address of the seller are also presented. (HM)