Burn, Robert Scott · London : Ingram, Cooke, and Co. · leaf 127
edge of the ruler on the edge of the T-square, so that the lines drawnfrom f 4 will be at right angles to those drawn from 1 7 ; let the point ofthe ruler be towards the right hand, and along the edge draw left-handisometrical lines 1, 2, 3, and 4 as may be required, and at the distancesfrom each… … fig. 111. 7, &c. ; the intersections of these, if all are drawn at the same distancesfrom each other, form isometrical squares, and by joining the points cubes PERSPECTIVE DRAWING. 119
Drawing · Wood-engraving
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