Hutchinson, G. W. Caldwell, Leighton of Stretton, Frederic Leighton, Baron, 1830-1896 · London ; New York : Macmillan and Co. · leaf 70
opor-tion to a B. Through e draw e f parallel to the ground line andin proportion also to a b. Having thus found the point F, join b iand d f. Find the centre line of the block by obtaining the exactposition of G on b d, and drawing a line from G to meet d f in h ;H b will be the centre line : or… … Draw a B. Find a point c on ab exactly under d, making inyour drawing c B in proportion to a b. From c draw a verticalline c d in proportion to ab, Join d b. Find a point e exactlyunder f, and from e draw e f parallel to c d and of the samelength. Join d f and a f. Find a point G on the ground…
Drawing
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