Rowbotham, Thomas Leeson, 1783-1853, Rowbotham, Thomas Charles Leeson, 1823-1875 · London : Winsor and Newton · leaf 39
37 HORIZONTAL LINES lines so parallel are a b and d e ; the lines so perpendicular are a d,b e3 and the stick f. The apparent increase of dimension of a d} when raised from its horizontal position, having been shown, the manner of determining the length of this side of the folio, when lying flat,… … Having drawn (Fig. 18) the horizontal line through the centre of view C, and the edge of the folio parallel to it, and having marked the centre of view as at C, set off C E on the horizontal line, at a distance from C equal to the supposed distance of the eye from the point C. It has been laid down…
Landscape drawing · Landscape painting
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
