A recently developed readability formula which requires little time and few mathematical computations is explained. (Editor)

The author demonstrates the simplicity in using the Readability graph, and illustrates her comments with specific examples. (Editor)

The design and study of library information networks are enhanced by the use of the concepts which have been developed by graph theorists. This paper proposes a general network structure which is a good model for a wide variety of library and other information networks. (4 references) (Author/NH)

The present experiments were designed to study the effects of search term weighting based on very limited relevance information, supplied, for example, by one or two relevant documents. The tests simulated iterative searching as in an on-line system and show that even very little relevance information can be extremely valuable. A list of…

The NIH-EPA Chemical Information System (CIS) provides facilities useful for the characterization and identification of chemical substances in industrial, academic, regulatory, and emergency response environments. It is comprised of a variety of data bases, retrieval programs, and related processing and display programs with on-line interactive…

The role of imagery in mathematical thinking and learning is discussed. The use of diagrams and charts is suggested as promoting imagery. (MP)

Curve-stitching the parabola is used as a means of confirming many of the parabola's mathematical properties and to construct some visually stimulating designs. (MP)