DOME

(Lat. domm ) In Architecture, the spherical or other figured concave ceiling over a circular or polygonal building. A surbased or diminished dome is one that is segmental on its section; a surmounted dome is one that is higher than the radius of its base. The forms of domes me, both in plan and section. In the former, they are circular and polygonal; in the latter, we find them semicircular, and semi-elliptical, segmental, pointed, sometimes in curves of contrary flexure, bell-shaped, <fec. -t cupola on record is that of the Pantheon at Borne, which was erected under August us, and is still perfect. We here subjoin a list of the domes whose dimensions entitle them lo notice. Feet high. Domes. Feet diam. 143 Pantheon at Rome. 142 i at Florence, Sta. Maria del 310 Finre...... 139 330 St. Peter's at Rome. 139 201 iia at Constantinople. 115113 215116 of Car a call a (Ancient). 120 St. Paul's, London. 112 9192 Dom« of the Mosque of Achmet. 86 199 f f the Medici 110 Ha 1itistery at Florence 97 Church of the Invalids at Paris 7880 173 Minerva Medica at Rome i deil a Salute, Venice. 6770 133190148 levieve at Paris (Pantheon). 254 Duomo at Sienna. 57 Duomo at Milan. 57 St Vitatts at Ravenna 55 13391 V,1 de Grace at Paris.. 56 k, Venice. 44 361 [s. 375]