Walker, William, b. 1821 · New York : C. Scribner · leaf 277
^.<5 > ,>/ /. / ° / \ 4 % / i ^ / CO … On Teclinlcal Perspective. 249 Beginning with line A, it will be found to form an angleof G0° with the base or ground line (g. l.) ; therefore fromthe horizontal line s draw a line to the left at 60°, andproduce it till it touches the H. L., which will give theyanishing point for the line at a. The…
Drawing -- Study and teaching
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