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Librarians in the Health Sciences Library System at the University of Pittsburgh explored the possibility of developing an electronic reference collection that would replace the print reference collection, thus providing access to these valuable materials to a widely dispersed user population. The librarians evaluated the print reference collection and standard collection development lists as potential benchmarks for the electronic collection, and they determined which books were available in electronic format. They decided that the low availability of electronic versions of titles in each benchmark group rendered the creation of an electronic reference collection using either benchmark impractical. [ABSTRACT FROM PUBLISHER]

In our setting, the dictionary is only considered as a useful book which lets us solve the main doubts concerning the definition and the writing of a given word that is why, in this current text, from a theoretical perspective, the author propounds to show it not just as a sporadic tool for the solution of doubts, but also as a potential object of study and a permanent didactic tool, which lets not only the definition of a word, but also its linguistic aspects, a task which entails the awareness of the usage of the language and even more importantly the understanding of its linguistic elements. [ABSTRACT FROM AUTHOR]

The article discusses the use of visual materials as the tool to improve the quality of science instruction. The author has stressed the need for such materials to make a direct contribution to the unit of study, and must be suited to the age and understanding of the group. He added that these materials should provide for individual differences and for individual growth within group activity and should be valid in the light of known truths and facts. As a conclusion, he has emphasized the role of visual materials in creating interest, inspiring individual and group effort, supplementing textbook and reference materials, and clarifying instruction.