Explains how to obtain information from United States Government publications through the use of depository libraries, purchase of government documents, and locating free government publications. Gives specific information source examples related to the geology of national parks, monuments, and forests. (GS)

Describes a modification in the use of artificial substrates to study attached micro-algae. Apparatus is based on glass microscope slides immersed in natural water environments; biomass and primary productivity are assessed by measurement of alpha-chlorophyll. Describes use in studies of colonization, succession, and populational fluctuation. (CS)

Provides illustrated directions for the construction and use of a low-cost thermistor device. Attached to a servo-type millivolt chart recorder, the device will record minute temperature changes and will simulate data obtained from an oxygen polarograph. Includes results of experiments with baker's yeast. (Author/CS)

Outlines steps to follow and recommends special features when selecting equipment for an engineering computer graphics laboratory. Expansion features are also discussed. Provides a systems checklist for software and hardware. (CS)

Discusses and compares the use of the word "reversibility" as it applies to thermodynamics, to equilibrium studies, and to kinetics. Discusses misuse of the word "irreversible" and its elimination from descriptions of chemical reactions. (CS)

Briefly reviews the history of nuclear energy, artificial transmutations, the fission process, and nuclear energetics. A comparison of magnitude is made between chemical and nuclear energy. (CS)

Relates experiences of a high school chemistry teacher that suggest various techniques to motivate and encourage students. (CS)

Discusses the applications of thin films in energy, optics and electronics. The use of thin-film technologies for heat mirrors, anti-reflection coatings, interference filters, solar cells, and metal contacts is included. (HM)

Identifies two practices that contribute to the world food problem, and exhorts scientists to establish priorities that include fundamental global problems. (GS)

Presents a scenario to illustrate the extremes of predictive medicine and susceptibility screening and lists factors that oppose the cautions and rational use of medical facts. (GS)

Presents the definition of learning disabilities found in the Specific Learning Disabilities Amendment of P.L. 94-142; briefly outlines the classroom teacher's role; and provides a short list of organizations, journals, and reference books for those seeking further information on learning disabilities. (SJL)

Describes instructional objectives, resources, and student projects for four units of a course on women and communication: (1) intrapersonal communication: socialization and self-concept; (2) interpersonal relations between the sexes; (3) females' communication in structured groups; and (4) public communication: female orators. (JMF)

Offers a detailed rundown of audiovisual equipment in terms of what each type does, its instructional application, the costs of purchase and maintenance, and the availability of corresponding program materials. (FL)

To facilitate the goals of the International Year of Disabled Persons (IYDP) in Catholic schools, the Diocese of Madison, Wisconsin, is offering a consciousness raising, sensitization program. Teachers resource kits are provided to help students explore facts and attitudes about handicaps. Part of a theme issue on disabilities. (Author/SJL)

The National Library Service for the Blind and Physically Handicapped and Recording for the Blind, Inc. are two nationwide organizations which serve blind and handicapped individuals of all ages by providing materials such as tapes and records of books and magazine articles. (LRA)