In June 1975, 47 men and 43 women living on commercial farms in Fulton County, Pennsylvania were interviewed regarding their behaviors, beliefs, and attitudes related to preventing cancer and coronary heart disease. Respondents represented about 39% of all adults living on commercial farms in the county. A commercial farm was defined as one that either sold $10,000 or more produce per year or the operator worked more than half time on the farm. During a face-to-face interview setting, each respondent was asked 137 questions pertaining to: the seriousness and susceptibility of the disease, early detection, their knowledge about the disease, high blood pressure, overweight, and medical services. Each person rated eight selected diseases regarding their seriousness and susceptibility. Findings included: cancer was perceived to be the most serious of all eight illnesses with heart disease ranking second; 35% perceived themselves as either likely or very likely to have heart disease; 24% believed themselves likely to have cancer; all the respondents strongly agreed that many types of cancer detected in the early stages could be cured; 2 out of 5 persons could name either 2, 1 or none of the 7 cancer signs; and 99% felt that high blood pressure could be reduced and were aware of 1 or more ways in which this could be accomplished. (NQ)