Interlibrary loan usage within Durham University Library, science section 1973/74

The interlibrary loan service was and is an ‘open ended’ service. The gross characteristics were known and details of each transaction were on record. What was not known was the pattern of interaction between readers, the science section and the co‐operating libraries. This analysis is restricted to indicating this aspect. An alternative approach outlining the use to which information on the publications borrowed is put has been published earlier (WOODWARD, W. B., The management of periodical subscriptions in the science section of the University Library, Durham, Aslib Proceedings, 27 (9), September 1975, p. 385–8).