tive basis. A minimum of 25 per cent of the school time is devoted to related subjects. The balance is given to general subjects. A total of 30 clock hours of instruction per week must be carried. The Type B Trade Course is one in which the related instruction is given by the shop teacher, incidental to the shop instruction, with no separation of the total time into definite periods for teaching the related subjects. In such courses, 50 per cent of the school time, which must be not less than 15 hours a week, is given to the combination of shop and technical instruction. The balance of the school day is devoted to general and related subjects. A total of 30 clock hours per week must be carried. The Trade Extension Program is designed: (1) To offer related and technical instruction to apprentices who have not yet received their journeyman certificates but who are employed on the job and must complete a program of related school training; (2) to offer instruction to journeymen in the recent development of their fields or to give refresher experience in their chosen occupations; (3) to offer owners, managers, and executives training in industrial organization, management, and supervision, and, (4) to offer short term re-training programs for those individuals or displaced persons who must learn a new skill because of the technological changes in industry. Department of Aircraft Instrument Repair Associate Professor Howard Johnson, Head; Instructors Wendell Holmes, Melvin Brown, James Michelson, Arlin Barnes and Carl Holmes. 1. Beginning Physics—A comprehensive course in physics dealing mainly with mechanics, precision measurements, structure of matter, solids, liquids, gases, forces and motion, work, energy and power, vectors and graphic solutions, basic machines, friction and rotation, torque and power transmission. A (5). Staff 2. Beginning Physics Continued—A comprehensive course in physics dealing mainly with mechanics, precision measurements, structure of matter, solids, liquids, gases, forces and motion, work, energy and power, vectors and graphic solutions, basic machines, friction and rotation, torque and power transmission. W (5). Staff 3. Beginning Physics Continued—A comprehensive course in physics dealing mainly with mechanics, precision measurements, structure of matter, solids, liquids, gases, forces and 250 motion, work, energy and power, vectors and graphic solutions, basic machines, friction and rotation, torque and power transmission. S (5). Staff 4. Beginning Mathematics—This course provides the necessary mathematical background for an understanding of the theories, concepts, and laws as they apply to the circuit components and circuits,covered in electricity and electronics. A review of algebraic rules is required first, then such subjects as powers of ten, use of slide rule reciprocals, ratio and proportion, simultaneous linear equations, applied geometry, right angle trigonometry, etc., are covered. A (5). Staff 5. Beginning Mathematics Continued—This course provides the necessary mathematical background for an understanding of the theories, concepts, and laws as they apply to the circuit components and circuits covered in electricity and electronics. A review of algebraic rules is required first, then such subjects as powers of ten, use of slide rule reciprocals, ratio and proportion, simultaneous linear equations, applied geometry, right angle trigonometry, etc., are covered. W (5). Staff 6. Beginning Mathematics Continued—This course provides the necessary mathematical background for an understanding of the theories, concepts, and laws as they apply to the circuit components and circuits covered in electricity and electronics. A review of algebraic rules is required first, then such subjects as powers of ten, use of slide rule reciprocals, ratio and proportion, simultaneous linear equations, applied geometry, right angle trigonometry, etc., are covered. S (5). Staff 7. Beginning Drafting—Instruction and application of electrical and electronic symbols, block diagrams, schematic elements and diagrams, components and assemblies, connection diagrams, printed circuits, wiring and line diagrams. A (3). Staff 8. Beginning Drafting Continued—Instruction and application of electrical and electronic symbols, block diagrams, schematic elements and diagrams, components and assemblies, connection diagrams, printed circuits, wiring and line diagrams. W (3). Staff 10. Beginning Instrument Processes—A study of sensing elements and components which are non-electrical in nature, and a study concerning behaviors of materials undergoing stresses, relative to pressure gages, liquid and gas flow measurements, liquid level measurements, temperature measurement (non-electrical), specific gravity measurements and viscosity measurements. S (5). Staff 251