Science and art drawing : complete geometrical course ; consisting of plane and solid geometry, orthographic and isometric projection, projection of shadow's the principles of map projection, graphic arithmetic and graphic statics (1895)
Spanton, J. Humphrey (John Humphrey) · London : Macmillan · leaf 25
denting the paper, which shouldalways be avoided. Having determined the extent of a line, always rub out thesuperfluous length; this will prevent unnecessary complication. Avoid using India-rubber more than is necessary, as ittends to injure the surface of the paper. After inking in a PRACTICAL… … squares. If this is done, it is immaterial whether the edges ofthe drawing-board are right angles, because it will only benecessary to use one of its edges. For drawing parallel lines that are neither horizontal norperpendicular, hold one set-square firmly pressed upon the
Geometrical drawing
Internet Archive · Wellesley College Library · Public Domain Mark 1.0. Free to use for anything.
