Semicircular Arch Small 320×168 Medium 640×337 Large 1024×538 Download Tiff Original 2400×1262 | (322.8 KB) Description "Semicircular arch, he center of which is in the same line with its springers." — The Encyclopedia Britannica, 1910 Keywords arch, keystone, semicircular, Springers, Voussoir, wedge Galleries Arches Source: The Encyclopedia Britannica, Eleventh Edition (New York: The Encyclopedia Britannica Company, 1910)II:343
