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 288
ut as points by which measurementsof receding lines may be obtained; therefore, they aretermed m<*nsuriii^ points. Now, in Fig. G, the distances Sc and Sa are laid off onthe triangle and on the line A/>, and the line ae is drawnmaking ^^.S an isosceles triangle. SL/ is alsg an…