Chichester Cathedral was originally begun about 1085, completed in 1108 and burned down in 1114. In its present form it is substantially a Transitional Norman building of the twelfth century, with some pointed details introduced after a second fire in 1186. The Lady-Chapel dates from 1288-1304. The spire, erected in the fifteenth century, collapsed in 1861, and has since been rebuilt. The whole edifice has been restored since 1848. The detached Bell Tower, a feature peculiar to Chichester among English cathedrals, is, despite its weather-worn appearance, one of the most recent parts of the building, dating from the fifteenth century. Canterbury Cathedral, the third church erected on the same site, represents English architectural history from 1070 to 1495; but its general external appearance is that of a magnificent building in the Perpendicular style. The present structure was begun by Laufranc, the first Norman architect, and was finished in 1130. The choir of this Norman cathedral was burned in 1174, and the present choir, in the Transitional style from Norman to Early English, was erected by William of Sens (who may almost be said to have introduced the Pointed style into England), and by his successor, William the Englishman (1174-1180). The old Norman nave and transepts remained intact for two hundred years more, when in 1378-1410 they were replaced by the present Perpendicular structure. The great central tower was added in 1495. The northwest tower is modern, the older tower having been pulled down, with doubtful wisdom, to make room for one to match its southwest neighbor. In spite of its huge proportions the interior of the nave produces a wonderful effect of lightness. The choir, one hundred and twenty feet long, is the longest in England. The great Norman arches, supported by circular and octagonal piers alternately, furnish a striking contrast to the inner portions of the nave. [Illustration: PLATE XCIV PETERBOROUGH CATHEDRAL: WEST FRONT] Norwich Cathedral was begun in 1096, and has preserved its original Norman plan more closely than any other in England. The first Bishop of Norwich, Herbert de Losinga, completed the choir and transepts, and began the nave. The latter was finished by his successor about 1140. The clearstory of the choir was rebuilt in 1356-69, and the vaulting of the nave and choir were added in the fifteenth century. In the same century the west front was altered, and the spire rebuilt. The most prominent features of the exterior are the lofty spire and the unusual apsidal termination of the choir. [Illustration: PETERBOROUGH CATHEDRAL CHOIR]