Describes simple apparatus and procedures for demonstrating photosynthic rates when Elodea plants are illuminated simultaneous with long and short wavelength light. (AL)

Describes the evolution of techniques of teaching external and internal students identical biology courses (introductory and advanced). Identifies and describes solutions to problems of communication, organization of practical work, and presents a perspective of course. (AL)

Describes use of laboratory kits to provide practical work for students away from the laboratory. Opportunity for interpretative discussion of data obtained is provided by access to tutors in open laboratories, which contain more elaborate equipment for use when needed. (AL)

Presents a research project for secondary school students in the fields of archaeophysics (archaeology) and geophysics using gamma spectroscopy. Describes investigations in mineralization and in dating of potsherds. (LS)

After introducing computer terminology, the author states the purpose of a 3-week intensive summer course to afford practicing scientists familiarity with digital computers in chemical instrumentation. Describes equipment and personnel required. The course consists of fourteen formal lectures and fourteen laboratory assignments in digital logic,…