The science of aesthetics; or, The nature, kinds, laws, and uses of beauty . tion of it which is notsupported by the vertical walls. § 176. There was another use of this™Tt*°^^ circular element of architectural sup-port and of beauty devised by the Ro-mans. It naturally grew out of the familiar em-ployment among them of long passages or galleriescovered by cylindrical vaults. If such a passage becrossed at right angles by another like vaulted pas-sage-of equal dimensions, the intersection will format the top two curves crossing diagonally througha central vertex. These two curves will be sup-p
The science of aesthetics; or, The nature, kinds, laws, and uses of beauty . tion of it which is notsupported by the vertical walls. § 176. There was another use of this™Tt*°^^ circular element of architectural sup-port and of beauty devised by the Ro-mans. It naturally grew out of the familiar em-ployment among them of long passages or galleriescovered by cylindrical vaults. If such a passage becrossed at right angles by another like vaulted pas-sage-of equal dimensions, the intersection will format the top two curves crossing diagonally througha central vertex. These two curves will be sup-ported virtually on the corners of the upright wallssupporting the vaults, and will be propped againsta lateral push by these same walls. If now these 214 LAWS OF BEAUtV; curved lines or ribs be covered, we shall hav6 avault fully supported, resting over the square spaceformed by the intersection of the passages, leavingthe passages themselves entirely free and is the Roman cross-vault—an element of greatbeauty, as also of availability as a mode of Roman Crossvault, § 177. 3. Gothic Architecture. ThePointed arch. characteristic feature of this style of architecture is ^t pointed arch. Wher-ever or whenever this element was first employed, orwhatever may have suggested its use, certain it isthat the necessity of steep roofs in severer climatesthan those of Greece and Italy, combined with thehigher ajsthetic value of the curved line, determinedthe general prevalence of the pointed arch in allthe central and northern parts of Europe after therevival of arts and letters at the period of the cru-sades. Nowhere but in the Gothic building, saysProf Lubke, do we find the pointed arch madethe fundamental law of the construction, and vaultedroofs, arcades, windows, and niches all executedwith its The theory of the pointed arch is perfectly sim- SPECUL Laws. 215 pie. Two like segments of equal circles intersect-ing at the apex of the arch, furnished
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectaesthetics, bookyear1
