CATALOG 1952-1953 CL. 368.-Strength of Materials Laboratory. 3 hours laboratory. 1 credit. Corequisite: EM. 367. Offered 1, 2. A laboratory course of experiments involving the strength and physical properties of engineering materials that are studied in Strength of Materials. CL. 411.-Civil Engineering Seminar. 1 hour. 1 credit. Prerequisite: Jun- ior standing in Civil Engineering. Offered 1, 2. Reports on current civil engineering literature; discussions of engineering develop- ments; engineering organizations, publications and activity. CL. 412.-Civil Engineering Seminar, 1 hour. 1 credit. Prerequisite: Senior standing in Civil Engineering. The second half of the course CL. 411-412. Offered 1, 2. CL. 415.-City and Regional Planning. 2 hours, and 3 hours planning ses- sion. 3 credits. Prerequisite: Senior engineering rating. Offered 1, 2. Principles of planning and zoning with emphasis on its application to smaller cities. Street systems, neighborhood units, transportation problems, utilities, and subdivisions. Urban blight and redevelopment, slum clearance, public housing and Federal aid. Basic principles and objectives of Regional Planning. Lewis, Planning The Modern City. CL. 422.-Public Health Engineering. 3 hours, and 3 hours laboratory. 4 credits. Prerequisite: Senior engineering classification. Offered 2. The relation of man to his environment and of the principles of engineering methods employed in environmental control in the interest of public health. The areas included are classified into three major environmental contacts, air, water and food, but exclude water supply and sewage disposal in which special instruction is offered in other courses. Special topics treated are the atmospheric environment, the physiological basis of ven- tilation and illumination; stream sanitation; food control, including restaurant sanita- tion; rural sanitation; insect and rodent control and industrial sanitation. Phelps, Public Health Engineering, Vols. I and II. CL. 424.-Soil Mechanics. 2 hours, and 3 hours laboratory. 3 credits. Prerequisite's: GY. 210, EM. 367. Offered 1. Origin and composition of soils; classification and routine testing; subsurface ex- ploration and sampling; permeability and capillarity of soils; compaction, field and laboratory methods; stresses in soil masses as determined by elastic theory; consolida- tion; strength theory; shearing characteristics of sand; shearing strength of cohesive soils, settlement analysis. Taylor, Fundamentals of Soil Mechanics. CL. 425.-Sewage and Industrial Waste Treatment. 3 hours. 3 credits. Prerequisites: CL. 427, CL. 429 or consent of instructor. Offered 2. A study is made of characteristics of sewage, its effect upon streams, and methods of disposal. A thorough study is made of sewage treatment methods with emphasis upon physical and biochemical changes that occur. The general aspects of the indus- trial waste problem are covered including detailed study of wastes of a sufficient number of individual industries to illustrate the principle. Phelps, E. B., Stream Sanitation; Eldridge, E. F., Industrial Wastes Treatment Practice. CL. 426.-Water Supply and Treatment. 2 hours, and 3 hours design. 3 credits. Prerequisite: EM. 313. Offered 1, 2. Sources of supply, methods of treatment; the design of water systems including supply, treatment and distribution. Hardenbergh, Water Supply and Purification. The statement "Offered 1" means offered first semester; 2, second semester; 3, summer session.