Geometrical drawing, projection drawing, freehand and ornamental drawing, wash work and brush drawing, elementary perspective drawing, architectural drawing (1921)
International Correspondence Schools · Scranton, PA : International Textbook Co. · leaf 309
25 … § 5 ELEMENTARY PERSPECTIVE DRAWING 27 tion point to the picture plane is equal to one-half the distancebetween the principal vanishing points (see rule III, Art. 7).Therefore, as 5 is equidistant from V^ and F, It follows thatM^ and M^ are equidistant each side of V^. It will be noticed that a…