St. Mark's rest : the history of Venice written for the help of the few travellers who still care for her monuments (1885)
Ruskin, John, 1819-1900 · New York : Lovell · leaf 364
Fig. 20. … Fio. 21. 36 THE ELEMENTS OF PERSPECTIVE. And all parallel lines have the same vanisbing-i^oint. (Noteto Problem IIL) Tlierefore, v is the vanishing-point of c d. Similarly, v is the vanishiug-j^oiut of b d. Therefore, from h and c (Fig. 22.) di-aw h v, c v, cutting eachother in d. Then ab c di^ the…
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