Theoretical and Practical Graphics An Educational Course on the Theory and Practical Applications of Descriptive Geometry and Mechanical Drawing Engineering or Architecture Classic Reprint

Excerpt from Theoretical and Practical Graphics: An Educational Course on the Theory and Practical Applications of Descriptive Geometry and Mechanical Drawing; Prepared for Students in General Science, Engineering or Architecture

Chapter I. A broad and comprehensive survey of the fields the student is about to enter seems the natural preliminary to intelligent work therein; the first chapter is, therefore, devoted to rigid definition and differentiation of the graphical sciences, and the arts in which they are applied. Some remarks on the nomenclature of geometries are also included, as further extending the draughtsman's usually too limited horizon.

This would naturally be followed by the ninth and succeeding chapters in a course arranged more for educational than commercial purposes.

Chapter II. As free-hand sketches are rightly made the basis of much of the practical draught ing of the embryo engineer or architect, and as the graduate has frequent occasion, either as inspector or designer, to make clear and intelligible drawings without instruments, full instructions are given in this section as to what may be called technical, as distinguished from artistic, free~hand work, covering the following points: Sketching either in pictorial or orthographic view, dimensioning, free-hand lettering, conventional representation of materials, and note-taking on bridges and other trussed work, pins, bolts, screws, nuts and gearing.

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