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 405
ide of the circle a Uttle way within theedge of the shaft. But for their more accurate constructionsee Notes on Problem XIV. I : . PIIOBLEM XL I It is seldom that any complicated cuiTe, except occasionallya spiral, needs to be drawn in perspective ; but the studentwill do well to practise for some… … The curves most required in architectural drawing, afterthe circle, are those of pointed arches; in which, however, allthat will be generally needed is to fix the apex, and twopoints in the sides. Thus if we have to draw a range ofix)inted arches, such as a p b, Fig. 63, draw the measured aich…
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