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 478
^9 +. 1 f K ._1 ^3 \ +• Fig. 26 -ha the first to the second story about 10 6, or 126. If therise of each step is assumed to be aboid Ih, it will be foundthat not less than seventeen risers are required. Seven ofthese are arranged in the hall leading up to the second land-ing, and the remainder lead…