Calendar: 1881-1882 Page 176

174 APPLIED SCIENCES Third Year-Tuesday 15 to Friday 15 to in the Michaelmas and Lent Terms and in the Easter Term 15 to Students carry on their Practical Geometry and their En- gineering Mechanical or Architectural Drawing on alternate days Λ fן if th Occasional Students can attend daily Saturday excepted geometrical drawing ז The course comprises the following subjects Practical Plane Geometry -The delineation of the curves required in the Arts such as the Ellipse Cycloid Epicycloid Involutes Spirals The construction of Polygons and mixed י figures having an axis of symmetry The construction of Scales plain and diagonal &c Practical Solid Geometry -The deduction of projections of solids in more complicated positions from simpler by the transformation of the co-ordinate planes The mode of re- resenting surfaces by the projection of their generatrices or by contours and of determining tangent and normal planes by means of them The development of ruled surfaces admitting it and of lines lying on them The determination of Shadows by orthogonal or radiating rays on plane and curved surfaces The intersection of surfaces and Problems on the lines of double curvature resulting from them The principles of Perspective or Radial Projection The Course-Book is the Elements of Practical Geometry published by the Council of Education and written by the late Professor Bradley ARCHITECTURAL ENGINEERING AND MECHANICAL DRAWING Elementary Exercises of the Course -The enlargement and reduction to various scales of examples from acknowledged works of merit principally of modern construction and drawings to scale from rough figured sketches until the Student shows sufficient neatness accuracy and general know-