Kenison, Ervin, Gardner, Harry W, Lawrence, William Henry, 1868-, Everett, Herbert E. (Herbert Edward), 1863-1932, Gregg, D. A. (David A.), Von Holst, H. V. (Hermann Valentin), 1874-1955, Brown, Frank Chouteau, 1876-1947, Griffin, Charles Lewis, 1867-, Neubecker, William, 1864-, Zapf, Alfred E, American School (Lansing, Ill.) · Chicago, Ill. : [American School of Correspondence] · leaf 24
is shaded, although it is so far in that no light could strike it. The student should study these figures carefully, and before rr~ 1 H1 n T1|K D n u L M 1 r\ r P1 F Fig. 17. leaving them should understand what each figure means and how the shade lines are determined, so that when he meets similar… … Fig. 18. are placed at each end of the dimension line ; the points of the arrowheads being exactly on the lines to which the measurement is being given. At a convenient place between the arrowheads a space is left in the dimension line for the figure. big 19 is a plan and elevation of a rectangular…
Mechanical drawing
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