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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 377

An illustration from St. Mark's rest : the history of Venice written for the help of the few travellers who still care for her monuments, 1885, leaf 377 — lygons joined by right lines, the resulting figure will be a portion of apolygonal pyramid. (The dot-ted lines in Fig. 38., connect-ing the extremities of two di-ameters and one diagonal inthe respective ciicles, occupythe position of the three near-est angles of a regular octago-nal pyramid,… … COROLLARY IL If equal circles, or equal and similar polygons, be inscribedin the upper and lower squares in Fig. 38., the resultingfigure will be a vertical cylinder, or a vei-tical polygonal pillai*,of given height and diameter, drawn in position. COROLLARY III. If the circles in Fig. 38., instead…

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