Ontario. Dept. of Education · Toronto : W. Briggs · leaf 324
draw the l)ack very lightly. 2. Take pencil measurements, comparing the thickness with the length of the back and correct, if necessary, the light sketch already made. 3. Judge the position of the l)ack edge of the top in relation to its near edge and lightly place it. 4. By pencil measurement test… … To help in the Judgment of the convergence of the two sides and of theapparent length of the back edge of the book, hold two pencils verticallyat arms length, one at each end of the book and at right angles to thefront edge, so that it appears to touch the end of the near edge of the topsurface.…
Drawing
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