_Texts_: _A._ _Departmental Manual I, “Professional Work of the Sophomore Year”._ _B._ _Breed and Hosmer, “Principles and Practice of Surveying,” Vol. I._ _C._ _Breed and Hosmer, “Principles and Practice of Surveying,” Vol. II._ _D._ _Robbins, “Problems in Surveying, CE 1”._ _E._ _Vega, “Logarithms”._ _F._ _Ries and Watson, “Elements of Engineering Geology”._ _G._ _Jeans, “The Stars in Their Courses”._ CE 2 Surveying. Prerequisite, CE 1. A continuation of the work begun in CE 1. The course covers the fields of hydrographic and geodetic surveying and practical astronomy. The route surveying classwork, formerly given in this course, is now covered simultaneously in the course in Highways CE 20 and CE 21. Route survey fieldwork is covered in the fieldwork of the surveying course. The course consists of classwork, fieldwork and drafting. The classwork covers a thorough drill in the principles of hydrographic and geodetic surveying and spherical trigonometry and practical astronomy. This is supplemented by fieldwork covering the use of the stadia, plane table and traverse board in the execution of topographic and engineering surveys, the methods of gaging streams, the geodetic and astronomic work necessary for control surveys, and the execution of preliminary and location route surveys for highways and sewers which are used in the design work of the courses in Highways and Sanitation. The work in the drafting room covers all computations and plotting necessary to complete a topographic map from the field surveys. _Texts_: _A._ _Departmental Manual II, “Professional Work of the Junior Year”._ _B._ _Breed and Hosmer, “Principles and Practice of Surveying,” Vol. II._ _C._ _Hosmer, “Practical Astronomy”._ _D._ _Hosmer, “Geodesy”._ _E._ _Pickets & Wiley, “Route Surveying”._ _F._ _Robbins, “Notes on Spherical Trigonometry”._ _G._ _Robbins, “Problems in Surveying, CE 2.”_ _H._ _American Nautical Almanac, 1939._ _I._ _Vega, “Logarithms”._ CE 10 Sanitation. Prerequisite, Satisfactory Junior Standing. A study of the principles of sanitary science and public health subdivided as follows: Hydrology. A study of the principles of hydrology with particular emphasis on their application to problems of water supply and storm water disposal. Public Health. A study of the engineering control of communicable diseases through the proper collection, treatment, and disposal of municipal wastes; the provision of safe water, milk and foods; the control of rodents and insects; the sanitation of public buildings; housing; and industrial hygiene.