IN THIS REPORT OF AN AUSTRALIAN TECHNICAL CONFERENCE ON AGRICULTURAL EXTENSION, EMPHASIS IS PLACED ON CASE STUDIES AND RESEARCH APPLICABLE TO PROFESSIONAL EXTENSION WORK, INCLUDING FARMER CONTACTS AND SUCH SUPPORTING ACTIVITIES AS LIAISON WORK AND COURSE WORK IN THE BEHAVIORAL SCIENCES. THE FIRST SECTION DESCRIBES SERVICES IN EACH STATE AND IN THE NORTHERN TERRITORY, NEW GUINEA, AND NEW ZEALAND. THE NEXT THREE SECTIONS COVER COMPARTIVE EXTENSION IN AUSTRALIA, EUROPE, AND THE UNITED STATES, SPECIAL PROBLEMS RELATING TO AUSTRALIAN PASTORAL AND OTHER INDUSTRIES, AND THE WORK AND PROBLEMS OF DISTRICT ADVISORS. THE ROLE AND SIGNIFICANCE OF COMMERCIAL FIRMS AND PRIVATE ADVISORY SERVICES (INCLUDING FARM MANAGEMENT CLUBS) IN FARM MANAGEMENT EXTENSION ARE DOCUMENTED IN THE FIFTH SECTION. OTHER SECTIONS DEAL WITH PROGRAM PLANNING, GROUP METHODS AND DEMONSTRATIONS, TELEVISION AND OTHER MASS MEDIA. THE RELATIONSHIP BETWEEN EXTENSION AND REGULATORY SERVICES AND RESEARCH EXTENSION LIAISON, RESEARCH IN COMMUNICATIONS, ADULT LEARNING, DECISION MAKING, AND PROGRAM EVALUATION, ASPECTS OF PROFESSIONAL TRAINING (HIGHER EDUCATION, INSERVICE TRAINING, INTERNATIONAL AID), AND POSTCONFERENCE REPORTS BY OVERSEAS VISITORS AND ORGANIZING COMMITTEES. ALSO INCLUDED ARE FOUR FIGURES, 35 TABLES, AND NUMEROUS REFERENCES. (LY)