In contrast to conventional information storage and retrieval systems in which a body of knowledge is thought of as an indexed codex of documents to which access is obtained by an appropriately indexed query, this interdisciplinary study aims at an understanding of what is "knowledge" as distinct from a "data file," how this knowledge is acquired, and how this knowledge can be made effective through symbolic discourse between man and machine. The purpose is the development of cognitive memory systems which are capable of responding with structured information that matches the gap in the knowledge of the querist, rather than with the delivery of a "document," i.e., an accidental linguistic representation of the information about a particular fact, that may or may not cover the point in question. This report, arranged chronologically, describes the work done in each of the five report periods. The initial research action centered around the development of a linked data structure concept (called "cylinders," based on a use of "rings") and other technical aspects. Later, the study concentrated more on the fundamental interactions involved in cognition, attempting not to duplicate human intelligence but to design machines to accomplish results that are similar to the results of cognitive processes. A pilot information system-- "Rules of the Road" -- was developed for experimental use. (Author/RM)