Inter of a plane and a surface, of two surfaces, of a straight line and a surface.
Tangent planes, cones, and cylinders circumscribed about topographical surfaces.
Use of a topographical surface to replace a table of double-entry when the function of two variables, which it represents, is continuous. It is often possible, by a suitable anamorphosis, to make an advantageous transformation in the curves of level.
Lesson 38. Revision.
Review of the different methods of geometrical drawing. Advantages and disadvantages of each.
Comparison of the different kinds of surfaces, résumé of their general properties.
Object, method, and spirit of descriptive geometry.
SECOND YEAR.
STEREOTOMY.—WOOD-WORK.