1. This is a study of 60 white teachers of vocational agriculture in Virginia to determine the desirable content of a farm power and machinery course for vocational agriculture in the high schools of Virginia. The purposes of the study were: a. To determine the nature and content of farm power and machinery units being taught by teachers of vocational agriculture in the high schools of Virginia. b. To determine the teaching units in farm power and machinery that should be included in the high school vocational agriculture course. Based on the teaching experience of the teachers included in this study, it is concluded that the practices being used and recommended by a majority of these teachers should be considered as acceptable guides for all teachers to follow in organizing and conducting their instructional program in farm power and machinery. The recommended teaching units include a study of: determining the place of power and machinery on the farm, preventing accidents on the farm, tractors, transportation equipment, tillage implements, seeding equipment, lime, manure, fertilizer distributors, harvesting equipment, crop processing equipment, clean, grading equipment, spraying, dusting equipment, pumps, rams, miscellaneous farm equipment, and storing equipment. / M.S.