Burn, Robert Scott · London : Ingram, Cooke, and Co. · leaf 122
allel to any ofthe lines de, dc,fb,fa, while those which are vertical are at right angles tothese or parallel to ae,fd, and bc. Thus, to give the representation of ablock of stone, as in figure 81, a circle as in figure 82 may first be drawn, PERSPECTIVE DRAWING. 113 and a cube formed by the rules… … fig. 81. fig. 82. next from a measure to f, and put in the left-hand side ajcd&s before;then from a f and b draw lines fo,be parallel to h h, h e, meeting in do; afobis the upper side of the block. Thus it will be seen that all the lines whichare horizontal in the drawings are parallel to the…
Drawing · Wood-engraving
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