The character and duty of a good magistrate : A sermon preached before the Right Honourable the Lord Mayor, and Court of Aldermen, and the liveries of the several companies of the city of London, at the parish church of St. Lawrence Jewry: on Saturday, September 29, 1750. Before the election of a Lord Mayor for the year ensuing. By William Sandford, D.D. minister of St. Mary in Aldermanbury, and chaplain to the Right Honourable the Lord Mayor.