Outlines the processes involved in improving the subject catalog at a medical library. Policy decisions concerning heading sources and revision methodology and plans for analyzing, weeding, and increasing the relevance of subject terms is discussed. The making of catalog changes and the results of catalog revision are also described. (JL)

Discusses an online bibliographic control program written using the Statistical Analysis System (SAS) and its use at the Denver Wildlife Research Center to organize and provide access to reprints of publications. The program listing, sample input and output, and programs for searching by one and two keywords are appended. (EJS)