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 409
ize) are first drawn, one abovethe other, with a given vertical interval, a c, between them,and each is divided into eight parts by its diameters and diag-onals. In these squares two circles are drawn : which are,therefore, of equal size, and one above the-other. Two smallercircles, also of equal… … FiG. 68. ters of squares which are cut off between the circles representradiating planes, occupying the position of the spokes of awheel. Now let the line a e b, Fig. 69., be the profile of the vase orcup to be drawn. Enclose it in the rectangle c d, and if any portion of it is notcurved, as a e,…
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