Abstract
A new system of photocopy exchange among national university libraries started in April, 1979. A survey on requests for photocopies from national university libraries to the Medical Library, University of Tokyo, was conducted and the following became clear. First, requests from non-medical libraries are increasing. The author believes that requests by non-medical personal are growing in number. Secondly, requests from non-medical users differ from those of medical users. So it is necessary for journal collections to be planned with due consideration of this fact.
