Concludes that in the laboratory, participants' conversation behavior is not discernably affected by videotaping, no matter how overt or obvious the taping procedure is. Study focuses on behaviors out of conscious awareness: gestures, head nods, speaking turns, self or object manipulations, and shifts to reclining posture or to forward lean. (PD)

The National Research Council has published a comprehensive report on procedures for handling hazardous chemicals and on other aspects of laboratory safety. By early 1981, the Occupational Safety and Health Administration intends to present preliminary proposals for safety in chemical research laboratories. (WB)

Discusses distillation of liquid mixtures with the emphasis on experimental work. A number of experiments, intended for chemistry secondary school teachers in the United Kingdom, are included. (HM)

Describes an experiment which makes use of a number of concepts from geometrical optics. The apparatus and method which is intended for students in elementary college physics classes are included. (HM)

Presents and explains analytical procedures for the detection and quantitative enumeration of bacteria which constitute or are indicators of fecal contamination of aquatic environments. Tests are given for Escherichia coli, fecal Streptococci, Clostridium perfringens, and Salmonella. (WB)

Describes urinalysis techniques for dry weight measurement, examination of urinary calculi (stones), and determination of the presence of blood and blood pigments. Also presented are directions for preparing required reagents. (WB)

To determine if an association exists between research methods and findings in attitude-behavior research, a review of the literature was conducted. More laboratory studies reported a positive relationship between attitudes and behavior, while more field studies found no such relationship. Extensive bibliography included. (Author)

Outlines a procedure where chromatographic separation can be easily done and provides an introduction to column chromatography. (CS)

Presents a viable laboratory experiment that demonstrates the utility of IR spectroscopy. Uses small quantities of deuterated gaseous alkanes. (CS)

Presents the construction, operation, and theory of a Sargent-Welch scattering apparatus. Procedures for using the apparatus are also presented for high school teachers. (HM)

Organized by topic is a reading list for A- and S-level biology. Described are experiments for measuring rate of water uptake in a shoot; questions to aid students in designing experiments; rise of overhead projection to demonstrate osmosis and blood cell counting; and microbial manufacture of vinegar. (CS)

Presents the results of the evaluation of a self-paced freshman physics laboratory and its assessment procedures used in the first-year physics course at the University of Adelaide, South Australia. (HM)

Describes the process of collecting and maintaining a culture of protozoa. Instructions are also given for constructing a micropipette for transfering small organisms. (SA)

This experiment, in which students experiment on themselves, involves carrying out analytical methods for vitamin C using instrumental and "wet" techniques. (SA)

Describes an experiment in which an air table is used to measure the moment of inertia of air pucks with various radii and mass loadings. (BT)