Granite imposed rigid restrictions on detailing. But the new generation knew how to make of those restrictions an opportunity for developing a highly original sort of basic classicism such as even the most determined European rationalists rarely approached. The houses at 39-40 Beacon Street in Boston, now occupied by the Women’s City Club, and the David Sears house at No. 42, now the Somerset Club (Plate 43B)—the latter by Parris and of 1816, the former probably by him and of 1818—as also the granite terrace at Nos. 70-75, probably by Benjamin, are good examples of domestic work of this period. More important is Parris’s Quincy (properly Faneuil Hall) Market in Boston, designed in 1823 for Mayor Joseph Quincy as the central feature of a considerable urbanistic development on the site of earlier docks. This domed and porticoed structure lacks the geometrical severity of the Sears house with its great bow on the front and its superbly placed scroll panel; but in the Market House Parris not only used cast iron for the internal supports but also experimented on the exterior with a trabeated framework of monolithic granite piers and lintels. The same sort of ‘granite skeleton’ construction (so to call it) was also used but with greater delicacy of proportion and elegance of finish—note the Soanic incised detail of the wooden window-frames—for the commercial buildings[95] which Parris designed and that various lessees shortly built along the streets that flank the Market House to the north and the south (Plate 112B). This was one of the major structural innovations of the period (see Chapter 14).