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 351
he vertical circles all being the same size,but the horizontal circles being of three sizes according totheir positions on the sphere. At {a) is shown the eleva-tion of one of these vertical circles enclosed within thedotted square, on which the positions of the horizontalcircles are also shown by… … • 95 0 (2 §5 ELEMENTARY PERSPECTIVE DRAWING 65 containing the largest horizontal circle et. The other twocircles, above and below, are then located in smaller squaresthat are drawn in their relative positions. To draw these,it is convenient at first to locate a large square immediatelyover fewv,…