This report describes a study of the use of science and technology books and journals in an academic library which was conducted to ascertain whether journal use can be predicted by book circulation figures. The study background and significance are discussed, terms are defined, study limitations are considered, and basic assumptions are explained. A discussion of data collection procedures describes the determination of the number of uses of books and journals per week during a 12-week period, which was done by recording circulation figures reported by the CLSI automated circulation system for books, and by counting the bound journal volumes as they were reshelved. The average number of uses per journal title was then compared to the stress figure for book circulation in specific subject classifications. An analysis of data using the Spearman rank order technique indicated a moderately high positive correlation between book stress and journal use, and it was concluded that it would be feasible for librarians to use book circulation data to determine the most heavily used areas of the collections, and use this information in the selection process for journals. Further studies such as a parallel count of the use of journal volumes on microform and a use survey of unbound and current volumes are also suggested. Rankings of stress and use are presented in tabular form, and the correlation between book stress and journal use is depicted in a graph. Two references are provided. (KM)