This is part I of a report on a study comparing reel and cassette tapes for signal-to-noise ration, total harmonic distortion, dynamic response, frequency response, bias and virgin noise and oxide coating uniformity. Test equipment and procedures are described and results are discussed. Charts detail research findings. (CHK)

Discusses the operation of the Health and Safety at Work etc. Act 1974 in relation to British universities. (MLH)

Discusses types of laboratory waste materials and methods for their safe disposal. (MLH)

Describes the hazards of using living materials in the science laboratory and outlines safety procedures that are particularly applicable to schools. Explains hazards to both mental and physical health and examines the latter in terms of fundamental and contingent factors. (Author/GS)

This is a questionnaire to be filled out by any institution having at least one sound recording in an uncommonly taught language. The questionnaire will be used in the second of a series of inquiries designed to facilitate information exchange among members of NALLD. (AM)

Describes the general features of three schemes used by teachers to assess their students' manipulative, observational, interpretational, and planning abilities and their attitude toward laboratory work. The three schemes were open-ended, intermediate, and check-list modes. A comparison of grades derived from these modes is presented. (GS)

This experiment leads to a value for the ground-state hyperfine splitting of Cs 133, the accepted standard of frequency, to one percent accuracy. (Author/GS)

This second report from the Analytical Chemistry Subcommittee presents ideas for using real-life samples for student analysis and for introducing the topic of developing procedures for analysis. (DT)