Burn, Robert Scott · London : Ingram, Cooke, and Co. · leaf 17
should rub it out and proceedto another attempt. Some little practice mustbe given to the delineation of squares, angles, &c.If a parallelogram or oblong—vulgarly called anoblong square—is wished to be drawn, it may befig* 8* done by making two opposite lines shorter than the others : the line… … * Treatise on Practical Geometry, and its application to Architectural Drawing. OUTLINE-SKETCHING. 9 line outside these, as in fig. 9, the representation of a picture-frame isobtained; the diagonal lines at the corners, as at a and b, being put in torepresent the joinings at the corners of the…
Drawing · Wood-engraving
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