The direct-chaining technique of hash coding is generalized in a manner that is useful for storing records on the basis of non-unique search keys. Two hash functions are used, a process implying a tree structure. Two models, one involving unique and the other non-unique keys, are presented. (7 references) (Author/KE)

If you have a 35mm camera, an enlarger or filmstrip projector, and developing equipment you can introduce your drafting students to one of the processes used in the newly emerging field of technical communication.'' (Editor)

Chemical structure diagrams are considered as utterances in a written language. Two types of grammars are considered for this language: topological grammars and geometric grammars. The hypothesis is presented that compact computer storage may become accessible via grammars. (15 references) (Author/NH)

Methods to improve bringing the ERIC knowledge base to the attention of practitioners emphasizing the use of informal communication are suggested. (NH)

Describes current developments in ultramicrbrarians need new approaches and continuing education to meet the challenges of new technology. (JS)

Virtual scatter storage schemes are well suited dictionaries, having both rapid lookup and economy of storage. (MF)

Describes how Danbury, Connecticut justified its computer costs by consolidating school and city accounting functions. (JF)

The computer system described was developed as a departmental aid in locating documents for use as teaching material or for research purposes in the area of information science. The data base of about 2,000 records includes a departmental library of manuals, reports, technical literature, and reprints, as well as journal references and book…

Describes sources from which the Educational Resources Information Center (ERIC) Clearinghouse on Reading obtains materials and discusses the criteria by which these materials are selected for acquisition. (MD)