An attempt to discriminate the styles of architecture in England : from the Conquest to the Reformation : with a sketch of the Grecian and Roman orders (1862)
Rickman, Thomas, 1776-1841, Parker, John Henry, 1806-1884, Le Keux, John Henry, 1812-1896, Cattermole, George, 1800-1868, Mackenzie, Frederick, 1787 or 8-1854, Jewitt, Thomas Orlando Sheldon, 1799-1869, Starling, William Francis, Hacker, C., 19th cent, Carter, James, 1798-1855, Wilkinson, W. S, Smith, C. B · Oxford ; London : John Henry and James Parker · leaf 70
heads ofassailants; these openings are called machicolations. Arches are round, pointed, or mixed. A semicircular arch has its centre in thesame line with its spring, as in fig. 1. A segmental arch has its centre lower thanthe spring, as in fig. 2. A horse-shoe arch has its centre above thespring,… … 50 ENGLISH GOTHIC ARCHITECTURE,
