Burn, Robert Scott · London : Ingram, Cooke, and Co. · leaf 78
ring the circle.The diagonals 2 6 and 8 4are drawn on the plan, andalso the diameters 1 5 and3 7. The two lines 4 6 and2 8 are also to be drawnthrough the points at whichthe circle intersects the dia-gonals ; and the square with its lines may now be put into perspective bypreceding rules, by which… … fig. 36. 70 ILLUSTRATED LONDON DRAWING-BOOK. and other lines, being only drawn in order to obtain by their assistancethe points 1,2, 3, &c., may be obliterated as soon as the perspective circleis inked in. The above eight points will, in drawings of ordinary size, besufficient guide to the hand…
Drawing · Wood-engraving
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