This review of the evolution of reference services in the library of the University of Tennessee at Chattanooga begins with background information on the university and a brief description of the library's holdings and services. The mission of the library is stated, and it is noted that automation began with internal technical operations in 1983. Services provided by the reference department are then discussed, and it is pointed out that, in addition to providing the more traditional reference services, reference librarians are also responsible for an increasing number of automated reference services. These services include accessing and, in some cases, training users to access, a variety of electronic databases, including the online catalogs of other universities, online databases available from commercial vendors, and electronic databases available on optical disk. A computer search is defined as library research which is performed for an individual by a librarian using a computer, and the various databases searched and procedures for requesting a mediated search are described. Charges and policies for mediated online and CD-ROM searches are also detailed, as well as the establishment of an experimental Automated Reference Center (ARC), which offers UTC faculty members access to electronic databases on CD-ROM and a brief training program in database search techniques for end-users. The report concludes with a discussion of the consequences of the reference evolution in terms of the new roles and responsibilities being assumed by staff members, the need for in-house staff training, and policies and procedures that will need to be reviewed and revised as reference services continue to evolve. (DB)