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 118
rsectingcylinder fg is 3 and in plan we have the points /, u, v, and wwhere the lower edges intersect. The lines of intersection u wand iv are at an angle of 46° with the axis of the cylindersbecause the curvature of each is the same, namely, that of acircle. Had or\e of these been an ellipse and… … 33 I
