UNIVERSITY OF FLORIDA CL. 427.-Sanitary Engineering Laboratory. 1 hour, and 6 hours labora- tory. 3 credits. Prerequisite: CL. 426. Corequisite: CY. 315. Offered 1. Laboratory studies in physical, chemical and microbiological aspects of Sanitary Engineering; laboratory tests and pilot plant experiments relative to the treatment of water, sewage and industrial wastes; laboratory demonstrations of phosphatase tests and pasteurization; problems of bacteriology in relation to environmental sanitation, in- cluding sewage, industrial wastes, water, milk, food dispensing establishments, swimming pools and bathing beaches, with particular emphasis on the use and interpretation of indices of pollution. American Public Health Association, Standard Methods for the Examination of Water and Sewage; Whipple, Microscopy of Drinking Water. CL. 428.-Sanitary Engineering Laboratory. 1 hour, and 6 hours labora- tory. 3 credits. The second half of the course CL. 427-428. Offered 2. CL. 429.-Sewerage. 2 hours, and 3 hours design. 3 credits. Prerequi- site: EM. 314. Offered 1, 2. The hydraulic and structural design of the sewerage systems and sewage treatment plants; including a study of the elementary principles of sewage treatments. Babbitt, Sewerage and Sewage Treatment. CL. 438.-Statically Indeterminate Structures. 3 hours. 3 credits. Pre- requisites: CL. 326, EM. 367. Offered 1, 2. A fundamental course in the elastic properties of structures; slope and deflection of beams and trusses; redundant systems, continuous beams, frames; special methods include moment area, elastic weight, consistent deflection, slope deflection and moment distribution. Williams, Analysis of Statically Indeterminate Structures. CL. 439.-Highway Location and Drainage. 2 hours, and 3 hours field and office. 3 credits. Prerequisite: CL. 321. Offered 1. Highway planning and location methods, including traffic and transportation sur- veys, design standards, right-of-way practices, intersection studies, etc.; preparation of plans; earthwork calculations; preparation of preliminary estimate; surface and sub- surface highway drainage. CL. 443.-Foundation and Harbor Structures. 2 hours, and 3 hours de- sign. 3 credits. Prerequisite: CL. 333. Offered 1. Analysis and design of foundations and harbor structures including information relative to earth pressures and the design of retaining walls and sheet piling; soil bearing power and the design of spread footings and raft foundations; piles and pile foundations; cofferdams; caisson; breakwaters; wharves and piers; bridge piers and abutments. Anderson, Substructure Analysis and Design. CL. 444.-Construction Methods and Estimating. 2 hours, and 3 hours computation. 3 credits. Prerequisite: Senior classification. Offered 1, 2. The equipment and methods of construction; estimating quantities; the cost struc- ture; estimates and cost accounting. Stubbs, Estimates and Cost of Construction. CL. 446.-Highway Bridges. 2 hours, and 3 hours design. 3 credits. Pre- requisites: CL. 333, CL. 335. Offered 1. The design of highway bridges of reinforced concrete and of steel; study of highway specifications; details of design; study of types and economics. CL. 448.-Industrial and Mill Buildings. 2 hours, and 3 hours design. 3 credits. Prerequisites: CL. 333, CL. 335, CL. 438. Offered 2. Applications of reinforced concrete and steel design to building structures; flat slab floors; design for continuity; study of building specifications and codes. The statement "Offered 1" means offered first semester; 2, second semester; 3, summer session.