Architrave casings were the rule, sometimes extending to the floor and often standing on heavy, square plinth blocks the height of the skirting beneath its molding. There are instances of both types at Mount Pleasant and Whitby Hall. The thickness of the walls in houses of brick and stone encouraged the custom of paneling the jambs and soffit of doorway openings to correspond with the paneling of the doors, the effect being rich and very pleasing. Generally the architrave casing was miter-joined across the lintel, as at Upsala, but in many of the better houses this horizontal part of the casing was given an overhang of an inch or two to form the doorhead. How pleasing this simple device was, especially when a rosette of stucco was applied to each jog of the casing, is well exemplified by the doors on the first floor at Whitby Hall. Very similar door trim without the rosette is to be seen at Cliveden and in numerous other houses. At Mount Pleasant, and in several of the more pretentious old Colonial mansions of Philadelphia, this type of door trim was elaborated by a surmounting frieze and heavy pediment above the architrave casing. The first floor hall at Mount Pleasant presents the interesting combination of a pulvinated Ionic pediment with a mutulary Doric cornice and frieze about the ceiling. Here one notices the flat dado and doors with raised and molded panels as contrasted with the paneled wainscot and bolection-molded, flat-paneled doors of the second-story hall. In this latter, also, some of the pediments are complete, others broken, illustrating another whim of the early American builders. Here the cornice is also Ionic with jig-sawed modillions, and the ensemble is generally more pleasing. In proportion and precision of workmanship this woodwork is hardly excelled in Philadelphia. The simple, carefully wrought dentil course of the doorheads lends a refining influence and pleasing sense of scale that seems to lighten the design very materially. Philadelphia has no handsomer example of the enriched pedimental doorhead than the interior treatment of the entrance doorway of the Blackwell house, Number 224 Pine Street. Above the horizontal overhang of the architrave casing across the lintel two beautifully carved consoles, the width of the frieze in height, support a cornice which is the base of a broken pediment. The familiar Grecian band or double denticulated molding in the string course gives character to the cornice, while an attractive leaf decoration in applied composition adorns the recessed frieze panel. Projections of the cornice above the consoles lend an added touch of refinement. This elaboration of the white wood trim is further emphasized by the dark red-brown painting of the door to simulate old mahogany, which became a frequent feature of the houses of this period.