A sermon preached in the Parish-Church of Christ-Church, London, on Thursday April the 24th, 1777 : Being the time of the yearly meeting of the children educated in the charity-schools, in and about the cities of London and Westminster. By the Right Reverend Father in God, Jonathan, Lord Bishop of St Asaph. Published at the request of the Society for Promoting Christian Knowledge, and the trustees of the several schools. To which is annexed, an account of the Society for Promoting Christian Knowledge.