This publication is the third of three sequential course manuals for instructors in x-ray science and engineering. This course manual has been tested by introducing it into the Oregon State University curriculum. The publication is prepared for the purpose of improving the qualifications of x-ray users and to reduce the ionizing radiation exposure of workers and patients. The course manual contains lecture outlines, laboratory exercises, and examinations. References, required equipment, and materials are listed. The purposes, teaching aids, materials, time recommended, and reference materials are suggested for each lecture and laboratory exercise. The equipment listed has been identified by model and manfacturer, but a substitute model of equipment is possible with alterations in the course content whenever required. Some of the lecture and laboratory exercises are x-ray film, x-ray screen, medical radiography, dental radiography, research application of x-rays, x-ray therapy, x-ray film development, and sensitometric properties of medical x-ray film. Three examinations are included. (PS)