UNIVERSITY OF FLORIDA CL. 301.-Forest Surveying. 1 hour, and 6 hours field practice. 3 credits. Prerequisite: CL. 223. Offered 1, 2, 3. Topographic mapping; resurvey of land lines and boundaries; timber road detail by compass and Abney level; mapping and traverse from aerial photograph data; plane table surveys; stadia measurements; line-azimuth determination; adjustment of instru- ments; leveling. Davis and Foote, Surveying. CL. 303.-Elements of Photogrammetry. 2 hours lecture and 3 hours lab- oratory or field practice. 3 credits. Prerequisites: CL. 226 or CL. 301. Offered 1, 2. The place of photogrammetry in surveying, mapping and general application to engineering, agriculture and industrial development; aerial photography, cameras, fly- ing height; geometry of aerial photos, scale, tilt; stereoscopy, parallax, plotting instru- ments; photo interpretation; mosaic construction. CL. 311.-Structural Drawing. 6 hours drawing. 2 credits. Prerequisite: ML. 182. Offered 1, 2. Structural representation; detailing beams, columns, trusses, built-up girders, riveted and welded joints, reinforced concrete members, and timber connections from design drawings. Bishop, Structural Drawing, and American Institute of Steel Construc- tion, Handbook of Steel Construction, American Concrete Institute, Manual of Standard Practice. CL. 321.-Highways and Airports. 3 hours. 3 credits. Prerequisite: CL. 226. Offered 1, 2, 3. The principles of highway planning, location, construction, maintenance, financing and administration, as applied to interregional, primary and secondary roads and city streets; planning and design of airports. Ritter and Paquette, Highway Engineering. CL. 323.-Materials Laboratory. 1 hour and 4 hours laboratory. 3 credits. Corequisite: EM. 367. Offered 1, 2. The principal materials used for engineering purposes with special attention to their physical properties and the reasons for the importance of these properties to the engi- neer, including definitions and methods of measurement. CL. 326.-Statics of Simple Structures. 3 hours, and 3 hours problems ses- sion. A credits. Prerequisite: EM. 365. Offered 1, 2, 3. Applications of the methods of statics to structural analysis; a correlation between graphical and analytical methods; moments, shears, reactions, resultants, stress diagrams, and influence lines for statically determinate structures. Wilbur & Norris, Elementary Structural Analysis. CL. 333.-Design in Reinforced Concrete. 3 hours. 3 credits. Prerequi- sites: EM. 367, CL. 326. Offered 1, 2, 3. The principles of reinforced concrete design; design of concrete mixtures; design of beams for bending; combined bending and axial loads; bond, shear, and web rein- forcing; composite beams; columns; simple retaining walls. Dunham, Theory and Practice of Reinforced Concrete. CL. 335.-Design in Metals and Timber. 3 hours, and 3 hours design ses- sion. 4 credits. Prerequisites: EM. 367, CL. 326. Offered 1, 2, 3. The structural design of metal and timber elements; connections, tension and compression members, beams, members subjected to combined bending and axial loads, as applied to structures. Williams and Harris, Structural Design in Metals; Hansen, Modern Timber Design. The statement "Offered 1" means offered first semester; 2, second semester; 3, summer session.