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 350
ances of the point bbe T d, d c, and c b. Then, by Problem I, the position of the point a on theplane of the picture is a. And similarly, the position of the point b on the plane ofthe picture is b. Join a b. Then a 6 is the Hue required. RIGHT JANE BETWEEN GIVEN POINTS. 21 COROLLARY L If the line… … Fig. Then the construction will be as in Fig*. 7. ; and the stu-dent will find experimentally that a 6 is now paiallel to a b.* And that a 6 is to a b as t s is to t d. Therefore, to draw any line in a plane parallel to that of thepicture, we have only to fix the position of one of its…
Art
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