estimate for the cost of the restoration was £1,000, with the parish paying £300; it eventually cost nearly £4,000 (), with the parish providing only £50. The erection in 1843 of a stone altar was the subject of a lawsuit. In 1845 the Court of Arches ordered that it be taken down and replaced with a wooden table. In 1866 the Cambridge Union Society built their premises in the church's former graveyard, while, in 1899, a vestry was added to the north of the north aisle; this was extended in 1980. The Victorian stained glass in the east window was destroyed by a bomb in the Second World War and was replaced in 1946. By 1994 the congregation had become too large for the church, and they moved their gatherings to the nearby Church of St Andrew the Great. Architecture The church is built in stone. Its plan consists of a circular nave surrounded by an ambulatory, a chancel with north and south aisles and a north vestry. Over the nave is an upper storey surmounted by a conical spire. To the north of the church is an octagonal bell-turret containing two bells. The church is entered by a Norman west doorway with three orders of colonnettes, decorated with scalloped capitals and zigzags, and crenellations in the voussoirs. Between the ambulatory and the nave are eight massive Norman columns and round arches. Each of the capitals of the columns is carved with a different design. Part of the vault of the ambulatory has dog-tooth ornamentation. In the ambulatory and nave are carved human heads dating from the 19th century. Above the nave is a triforium containing double Norman arches. To the east are the chancel and aisles. In the chancel and the north aisle are carved angels dating from the 15th century which are attached to the corbels supporting the roof; some of the angels are holding or playing musical instruments. The communion table dates from 1843 and was made by Joseph Wentworth. The chancel is floored between the choir stalls with tiles laid in 1842. They depict the Royal coat of arms, and the arms of Queen Victoria and Prince Albert. At the corners are animals representing the Four Evangelists. There are two bells in the bell-turret. One of these is dated 1663 and was cast by Robard Gurney; the other is a priest's bell possibly cast by J.