This two-part report discusses the implementation of the four-day week on college campuses and summarizes the results of a survey conducted to investigate: (1) the history of the four-day college week in Texas; (2) how Texas colleges using this system integrate their operations into the four-day week; and (3) the future acceptance of the four-day week by Texas colleges. Part I examines the evolution of the school calendar from the traditional semester system to today's "4-1-4" system, and then urges the adoption of the four-day week as a continuation of this trend toward educational innovations that meet student, rather than institutional, needs. The origins of the four-day system in the business community are cited, as is the system's potential to cut school utility costs and student gasoline expenses. Part II analyzes the responses of six of the seven Texas colleges utilizing the four-day week to an 18-item survey instrument. Respondents indicated that the major advantage of the four-day week was the saving of energy and that the major disadvantages were the long work day and the short lunch break. Generally, faculty, student, and community attitudes toward the system were favorable and respondents indicated that no major scheduling problems were encountered in converting from the five-day week. Summary conclusions and the questionnaire are included in Part II. (JP)