Much was done at Ely House. In the May of 1661 the Convocation of Canterbury met in S. Paul's, its marred, plundered condition not inaptly showing the adversities through which the Church of England had passed. The Convocation had much work before it, the most pressing being to prepare a service for the baptism of those of riper years and for May 29. In order to this a committee of both Houses of Convocation was formed, which met at Ely House, and of which Bishop Wren appears to have been the ruling spirit. Many were still half afraid of their true position and afraid of the Puritan party; eighteen years of confusion and persecution had slackened all discipline, and many things seemed natural to the new generation which neither Bishop Andrewes nor Archbishop Laud would have tolerated for a day. It is implied in Dr. Barwick's Life that many of those who should have upheld the Church discipline were willing, from a mistaken notion of conciliation and peace, to let it go. Bishop Wren set his face resolutely against this doctrine. [_REVISION OF THE PRAYER BOOK._] In November the Convocation met again. Dr. John Barwick had been appointed to the deanery of S. Paul's, and in spite of very failing health, had resumed the weekly Communions, daily prayers, and musical services of the cathedral, and had succeeded in making the choir, where the Puritans had stabled their horses, once more fit for Divine service. At this session of Convocation the Prayer Book was finally revised, after the Bishops had heard at the Savoy Conference all that the Puritans could urge against it. Bishop Wren had been actively engaged in this work, and suggested a considerable number of alterations and additions, many of which were adopted. A large number of grammatical errors had crept in to the old book: for example, 'which' instead of 'who' was in almost all the collects and the Apostles' creed. It still, by some oversight, survives in the Lord's Prayer.[82] 'The altering whereof,' says Bishop Wren, 'if it may seem strange at first to unskilful ears, yet will it not be a nine days' wonder, but for ever after a right expression in all our addresses unto God.'