UNIVERSITY OF FLORIDA EL. 363.-Electrical Machinery I. 3 hours, and 3 hours laboratory. 4 credits. Prerequisites: MS. 354, PS. 206, EL. 211. Offered 1, 2. Analysis of ferromagnetic circuits, direct current rotating machinery, reactors, single phase and polyphase transformers. EL. 441.-Electrical Engineering Seminar. 1 hour. 1 credit. Prerequisites: Not less than 14 credits in courses in Electrical Engineering. Offered 1. Discussions on topics from current engineering periodicals, on research projects in progress in the laboratories, and on new developments in industry. EL. 442.-Electrical Engineering Seminar. 1 hour. 1 credit. The second half of the course EL. 441-442. Offered 2. EL. 445.-Electrical Instruments, Meters, and Relays. 2 hours, and 3 hours laboratory. 3 credits. Prerequisite: EL 362. Offered 1, 3. Indicating instruments; demand instruments; recording and integrating; instrument transformers; measurement of circuit constants at low frequency and at radio frequency; measurement of frequency; wave form, power factor and phase angle; vacuum tube in- strument. EL. 446.-Electric Power Transmission. 3 hours. 3 credits. Prerequisite: EL. 362. Offered 2. Characteristics of power and communication lines derived from the distributed con- stant circuit standpoint; traveling and standing waves; impedance loci and transmission line charts. EL. 453.-Radio Station Operation. 3 hours laboratory. 1 credit. Prere- quisite: EL. 346. Offered 1. Operation, maintenance, and testing of a broadcasting station, under actual operat- ing conditions and under the direction of licensed operators. EL. 454.-Radio Station Operation. 3 hours laboratory. 1 credit. The second half of the course EL. 453-454. Offered 2. EL. 462.-Ultra-High Frequency Technique. 3 hours, and 3 hours labora- tory. 4 credits. Prerequisite: EL. 465. Offered 2. Methods of generating, transmitting and receiving centimeter microwaves. EL. 464.-Introduction to Electromagnetic Theory. 3 hours. 3 credits. Prerequisite: EL. 362 and approval of instructor. Offered 1. An introductory presentation of vector analysis and the fundamentals of electro- magnetic fields and waves for engineering applications. EL. 465.-Communication Engineering. 3 hours, and 5 hours laboratory. 5 credits. Prerequisite: EL. 346, EL. 362, EL. 363. Offered 1. Component parts of systems of electrical communications, including circuit constants, vacuum tube amplifiers, oscillators, modulators, detectors, and rectifiers; complete com- munication systems; propagation of radio waves; antenna systems. EL. 466.-Communication Engineering. 3 hours, and 5 hours laboratory. 5 credits. The second half of the course EL. 465-466 Offered 2. EL. 467.-Electrical Machinery III. 3 hours, and 5 hours laboratory. 5 credits. Prerequisite: EL. 362, EL. 363. Offered 1. Design, characteristics, and operation of alternating current apparatus particularly transformers, generators, motors. Experimental tests on alternating current apparatus. The statement 'Offered 1" means offered first semester; 2, second semester; 3, summer session.