138 DUTCH AND ENGLISH ON THE HUDSON form of government late in practice," appointed a mayor, aldermen, and a sheriff to rule New York, and directed the new officials to swear allegiance to the Duke He continued the commercial rights of the freeman who represented the burghers of the Dutch period, and he also introduced trial by jury, which placated the dwellers at New York and along the Hudson. On Long Island and in Westchester where New Englanders had settled, Nicolls proceeded with greater vigor. This section together with Staten Island was erected into the district of Yorkshire, where "the Duke's Laws" were proclaimed and the machinery of English county government was put in operation. With its three ridings, its courts of sessions, and its court of assizes, Yorkshire soon had an unmistakable English character even though Dutch inhabitants were numerous in western Long Island and in Staten Island. The Duke's Laws were compiled mainly from the laws of the New England colonies, though they de- parted in many particulars from New England traditions. In the Dutch towns schouts and schepens gave place to overseers and constables. The characteristic form of town government in the province was that in which freeholders elected