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 411
yet the perspective lawswhich resfulate them shouldbe understood, else the eyedoes not see their contoursrightly until it is very highlycultivated. Fig. 71 will show the lawwith sufficient clearness ; itrejDresents the perspectiveconstruction of a fillet whoseprofile is a semicircle, suchas F H in… … APPENDIX. 83 Round p a horizontal semicircle is drawn on the diameter ofthe shaft ah. Round Q another horizontal semicircle is drawn on diametercd. These two semicu-cles are the upper and lower edges of thefillet. Then diagonals and diameters are drawn as in Fig. 68., andat their extremities,…
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