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 353
lines drawn from b, c, and d toward the measuring pointswill intersect lines drawn from a toward the vanishing points, 66 ELEMENTARY PERSPECTIVE DRAWING so as to lay out the octagon, as shown. The height of theprism, or its distance above or below the horizon, is imma-terial in this problem, and… … with a i-inch border as usual, but the problem will require afull-size drawing board. For the drawing of this and successive problems, it will bewell to draw in ink on the drawing board a line representinga horizon, on which is located at the proper places the centerof vision and measuring points.…