Describes and evaluates the fabrication of an easily constructed and inexpensive stop-flow system using commercially available components. (CS)

Five articles in this issue focus on safety education in agricultural laboratories. Topics discussed include teacher liability; elements of a safety instruction program; state and federal safety standards; ground fault current protection; and eye protection requirements and equipment. (SK)

Twenty-five audiotutorial lessons in laboratory animal medicine were evaluated by students enrolled in courses at six schools of veterinary medicine. Results indicate that the lessons are an effective learning resource, that prior knowledge did not significantly influence final test scores, and that subjective qualities did not affect learning.…

Presents excerpts from a book written by students in 1938 who attended University High School, a laboratory school at Ohio State University. Provides background information about the school, curriculum information, teacher evaluations and overall evaluations of the educational experience. Points up advantages and disadvantages of the experimental…

Presents a historical view of university laboratory schools. Discusses the changing functions of the schools since their nineteenth-century inception. Recalls that initially they provided teaching practice, while today observation, demonstration, and experimentation are paramount. Underscores the need to emphasize laboratory schools' value to…

Describes the function of the children's museum in the life of a community and in the experience of a visitor. Included are the emotional experiences of the museum personnel as they moved to change their facility. (SA)

Describes the analysis of geology teaching assistant reaction to a training program on teaching techniques utilizing videotaped teaching episodes. Reactions of the participants indicate that the use of videotaped teaching episodes in conjunction with group discussion is one way to improve their teaching practices. (Author/SA)

Listed are field stations in the Caribbean and Florida-Bahamas which are suitable for classes in field geology and tropical marine science. Each field station is described by listing the name of the institution, description of accommodations, library facilities, laboratory facilities, boats, classrooms, motor vehicles, study areas, scuba, and…

Describes the establishment and operation of adult Individual Learning Centres in New South Wales (Australia) colleges to provide a flexible alternative to existing college preparatory courses. The Centres include alternative instructional methods, individual study, self-instructional materials, open entry/exit arrangements, and teacher tutoring.…

Describes the use of infrared and atomic absorption spectrometry in an introductory chemical oceanography course to introduce students to carbonate mineralogy by having them determine both the crystal structure and the magnesium content of seashells that they have collected. (Author/JN)

Lists the materials and describes two procedures, for demonstrating the solubility and complex ion equilibrium of silver(I) compounds. Indicates possible hazards and proper disposal. Suggests several homework problems. (JN)

Describes different evaluation techniques of student performance in the science laboratory. Evaluation techniques discussed include written reports, test items, practical tests, and observational assessment to evaluate both student performance and to promote development of specific skills. (DS)

Presents activities for the fossilization process by using rust prints to simulate fossils. Photographs illustrate the procedures described. (HM)

In this article, research on nonhuman animals is reviewed to show that there is no discontinuity between humans and other animals. For both, high density is not necessarily harmful. Rather, the effect of high density depends on other factors in the situation. (Author)

The study investigated specific student behavior in introductory and advanced college laboratories in botany, chemistry, geology, physics, and zoology. Behaviors were observed, described, and classified with no effort made to induce change, detail underlying conditions, or identify correlates. (Author/RE)