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 346
60 ELEMENTARY PERSPECTIVE DRAWING §5 true height on the corner of the arch xy, which is in thepicture plane, and projecting- it to its true place by a linetoward V, as shown; or, after locating /, a line may be drawnthrough / toward V^—the vanishing point of lines inclinedat an angle of 45° above…