TO IDENTIFY FACTORS THAT CONTRIBUTE EITHER POSITIVELY OR NEGATIVELY TO TEACHER MENTAL HEALTH, 629 TEACHERS ENROLLED IN A COLLEGE COURSE ENTITLED "MENTAL HEALTH IN THE SCHOOL" (90 PERCENT FEMALE, MOST WITH 1-2 YEARS TEACHING EXPERIENCE) RESPONDED TO A "PERSONAL RELATIONS QUESTIONNAIRE" ASKING--(1) WHAT DO YOU MOST LIKE AND DISLIKE ABOUT TEACHING, (2) WHICH CHARACTERISTICS OF YOUR PRINCIPAL, SUPERVISOR, AND INVESTIGATOR DO YOU LIKE, AND WHICH DO YOU DISLIKE, AND (3) WHAT ARE THE CHARACTERISTICS OF THE "BEST" AND "WORST" TEACHER IN YOUR SCHOOL. IT WAS FOUND THAT--(1) WORKING WITH AND HELPING CHILDREN, HOLIDAYS AND HOURS, AND THE VARIETY OF WORK WERE THE MOST LIKED FEATURES OF TEACHING, (2) CLERICAL DUTIES, PARENT-TEACHER DIFFICULTIES, AND CORRECTING BOOKS AND EXAMINATIONS WERE THE MOST DISLIKED FEATURES, (3) FRIENDLINESS, HELPFULNESS, AND UNDERSTANDING WERE THE LIKED CHARACTERISTICS OF PRINCIPALS, SUPERVISORS, AND INSPECTORS, (4) PRINCIPALS WERE MOST DISLIKED FOR BEING UNABLE TO CONTROL SCHOOL DISCIPLINE AND FOR BEING DOMINEERING, WHILE SUPERVISORS AND INSPECTORS WERE DISLIKED FOR NOT GIVING HELPFUL SUGGESTIONS AND CONSTRUCTIVE CRITICISM AND FOR INTERRUPTING LESSONS, (5) THE "BEST" TEACHER IS COMMONLY CHARACTERIZED AS KINDLY, WELL-ORGANIZED, UNDERSTANDING, AND ABLE TO MAINTAIN DISCIPLINE AND, (6) THE "WORST" TEACHER IS COMMONLY SEEN AS LAZY, IRRESPONSIBLE, AND UNABLE TO MAINTAIN DISCIPLINE. THIS ARTICLE WAS PUBLISHED IN "CANADIAN EDUCATION AND RESEARCH DIGEST," JUNE 1967. (AW)