CATALOG 1952-1953 AG. 402.-Farm Concrete. 1 hour, and 2 hours laboratory. 2 credits. Offered 2. The coloring, curing, mixing, placing, proportioning, reinforcing and waterproofing of concrete for farm use. Consideration of materials suitable for farm concrete work. AG. 403.-Agricultural Engineering Investigations. 2 hours. 2 credits. The first half of the course AG. 403-404. Offered 1, 3. Assigned reading and reports of recent developments in the field of agricultural engineering. AG. 404.-Agricultural Engineering Investigations. 2 hours. 2 credits. The second half of the course AG. 403-404. Offered 2. AG. 406.-Dairy Engineering. 2 hours, and 2 hours laboratory. 3 credits. Offered 1. The machinery and power used in the manufacture and storage of dairy products. Shop operations necessary to operation of dairy plant considered. AG. 407.-Farm Shop Power Equipment. 1 hour, and 4 hours laboratory. 3 credits. Offered 1, 2, 3. The care, operation and repair of both metal and woodworking power shop equip- ment used in the construction and repair of farm buildings and equipment. AG. 408.-Soil and Water Conservation. Identical with SLS. 408. 2 hours, and 2 hours laboratory. 3 credits. Prerequisites: SLS. 301, AG. 301. Pre- requisite or corequisite: SLS. 302. Offered 2. (For description see SLS. 408.) AG. 409.-Seminar. 1 hour. 1 credit. Offered 2. Discussions of current developments in the field of agricultural engineering. GRADUATE COURSES Prerequisites: Bachelor's degree in Agriculture or Agricultural Engineering. A minimum of twenty semester hours in Agricultural Engineering. AG. 501.-Seminar. 2 hours. 2 credits. Offered 1, 2. Agricultural engineering problems with a review of the literature. Required of all graduate students registered in the department. AG. 570.-Research. 3 to 6 hours. 3 to 6 credits. Offered 1, 2, 3. Special problems in agricultural engineering. AG. 571.-Research Problems in Irrigation. 3 to 6 hours. 3 to 6 credits. Offered 1, 2, 3. AGRICULTURAL EXTENSION Instructional Staff 1951-52 Senn, P. H., Head; Hampson, C. M. AXT. 301.-Rural Leadership. 3 hours. 3 credits. Prerequisite: Junior Standing. Offered 1. The duties of county agricultural agents and other rural leaders. Trains students to meet the public, interest farmers, conduct meetings, demonstrate good farming prac- tices, plan programs, manage an office, and secure cooperation. The statement "Offered 1" means offered first semester; 2, second semester; 3, summer session.