[Frederic Shonnard & W.W. Spooner (1900)] The trolley is likewise exercising a peculiar developing influence in the Hudson River municipalities, where the steepness of the ascent from the railway and from the village centers to many of the resi-dence localities has always been a hindrance to diversified progress. Two trolley routes now cross the county: one from Yonkers through Mount Vernon to New Rochelle, the other from Tarrytown through White Plains to Mamaroneck. Nine new villages have been incorporated during the present decade: Pelham Manor and Larchmont in 1801, Mamaroneck in 1805, Pelham, North Pelham, and Ardsley in 1896, Pleasantville in 1897, and Bronxville and Croton in 1898. This volume is issued before the appearance of the census returns of 1000 for Westchester County proper. J In 1808, however, local enu-merations were made in the villages of the couniy, with the following-results in the incorporated places : ?