A manual of elementary geometrical drawing, involving three dimensions. Designed for use in high schools, academies, engineering schools, etc. : and for the self-instruction of inventors,artizans, etc. ... In five divisions .. (1867)
Warren, S. Edward (Samuel Edward), 1831-1909 · New York : J. Wiley and son · leaf 130
rpen-dicular projection., in which the object is, however, seen obliquely,and in which each plane side of a solid right angle is, indeed,viewed with equal obliquity. Cabinet projection is a species of oblique projection. v. Lines making angles of 45° with the vertical plane, may makevarious angles…
Geometrical drawing · Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
