The 1662 Prayer Book was printed two years after the restoration of the monarchy, following the Savoy Conference between representative Presbyterians and twelve bishops which was convened by Royal Warrant to "advise upon and review the "Book of Common Prayer"". Attempts by the Presbyterians, led by Richard Baxter, to gain approval for an alternative service book failed. Their major objections (exceptions) were: firstly, that it was improper for lay people to take any vocal part in prayer (as in the Litany or Lord's Prayer), other than to say "amen"; secondly, that no set prayer should exclude the option of an extempore alternative from the minister; thirdly, that the minister should have the option to omit part of the set liturgy at his discretion; fourthly, that short collects should be replaced by longer prayers and exhortations; and fifthly, that all surviving "Catholic" ceremonial should be removed. The intent behind these suggested changes was to achieve a greater correspondence between liturgy and Scripture. The bishops gave a frosty reply. They declared that liturgy could not be circumscribed by Scripture, but rightfully included those matters which were "generally received in the Catholic church." They rejected extempore prayer as apt to be filled with "idle, impertinent, ridiculous, sometimes seditious, impious and blasphemous expressions." The notion that the Prayer Book was defective because it dealt in generalizations brought the crisp response that such expressions were "the perfection of the liturgy".