This statistical summary presents data on the library collections, interlibrary loans, expenditures, personnel, and Ph.D. programs from the 99 university and non-university members of the Association of Research Libraries (ARL). A separate table describes microform holdings by type. Member libraries are rank ordered on the following 13 factors: volumes in library, volumes added, microform holdings, current periodicals, professional staff, nonprofessional staff, total staff, materials expenditures, materials and bindings expenditures, salaries and wages, total expenditures, total items loaned, and total items borrowed. (KB)