School of Library Science, Case Western Reserve University, Cleveland, Ohio
‡ Present address: Information Service Librarian, University of Louisville Medical School Library, Louisville, Kentucky.
* This paper won the first annual Rittenhouse Award of the Medical Library Association in June 1968 for a manuscript paper which constitutes an outstanding original contribution prepared by a student in an MLA-approved medical library course or a trainee in an MLA-approved internship program.
† This work was supported in part by PHS Training Grant LM-00123-01 and PHS Research Grant LM-00422-01, through the Extramural Programs of the National Library of Medicine, Alan M. Rees, Program Director and Principal Investigator, respectively. This paper satisfied the requirements of a course within the Training Program in Medical Librarianship at Case Western Reserve University.