Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 739
, the point k, cube A, is the intersection of /D by b\; thepoints k\ Z, m are the intersections of c D, o D, nJ) by b\\ cY d\.Similarly on planes parallel to that of the picture, ^, cube A is intersection ofthe diagonal c k, by the ray of light b V. Applying this rule to the frame C, from ;•, 5,… … PEKSPECTIVE DRAWING. 723
Mechanical drawing
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