Describes air observation activity in which human fingerprints are investigated. Includes diagrams of various fingerprint types and the characteristics of various fingerprint ridge types. (SL)

Presented is a biological game utilized to teach fungi life cycles to secondary biology students. The game is designed to overcome difficulties of correlating schematic drawings with images seen through the microscope, correlating life cycles of fungi and host, and understanding cyclic development of fungi. (SL)

Presented is a summary of student enrollment in science, in secondary schools, during the period 1890 to 1973. The data are presented graphically and in tables with expanded graphs for the period 1958 to 1972. A discussion of the enrollment trends is included. (SL)

Discusses the importance of microorganisms in chemical pollution and pollution abatement. Selected chemical pollutants are chosen to illustrate that microorganisms synthesize hazardous substances from reasonably innocuous precursors, while others act as excellent environmental decontaminating agents by removing undesirable natural and synthetic…

Discusses the unusually aggressive Brazilian honeybee, which exhibits many of the attributes of its African antecedants. Describes its abundance and distribution, behaviorial characteristics, future spread, and the potential impact of the Brazilian bee in North America. (JR)

Presents a review of genetic engineering, in which the genotypes of plants and animals (including human genotypes) may be manipulated for the benefit of the human species. Discusses associated problems and solutions and provides an extensive bibliography of literature relating to genetic engineering. (JR)

Three separate articles deal with issues involved in development of curriculum. Due to the importance of environmental issues, biological education should include topics of environmental management. Critical examination of a curriculum evaluation entitled Science 5/13: Report for Teachers on the Evaluation of the First Set of Units'' is made. (PS)

Many experiments can be conducted in spring and early summer when many of the flowering plants must hurriedly bloom before the leafage of the trees and bushes takes most of the needed sunlight away. (DF)

An experiment involving the preservation of mouse kidney cortex and liver tissues is set up to evaluate the relative tonicity of fixatives. (DF)

The function of filters in various situations is discovered through activities with common objects, machines, and organisms. (DF)

Suggestions are provided for using animals (particularly snakes) as the focus of studies and activities in the science classroom. For example, cages with animals can serve as a learning center on various aspects of the animal. A list of suggestions for the care and feeding of snakes is provided. (JN)

This article reviews and compares five recent secondary science texts: Addison-Wesley Life Science (Gr. 7-9); Prentice-Hall Life Science (Gr. 7-9); Scott Foresman Biology (Gr. 9-12); Biology: Living Systems (Gr. 10-12); and Biology: The Science of Life (Gr. 10-12). (SJL)

Presented is an activity that uses ground ivy to display different growth forms under different light intensities. Specimen preparation, materials, procedures, and probable results are discussed. Examples of graphs of the data are provided. (CW)