Within, a broad hall extends entirely through the house from one front to the other, as likewise does a spacious drawing-room on the north side with an elaborate chimney piece in the middle of the outside wall. The dining room occupies the west front, and back of it, in an L extension from the hall, a handsome staircase with gracefully turned balustrade leads to the bedrooms on the second floor. Throughout the interior the wood finish is worthy of the exterior trim. Beautifully tooled cornices, graceful pilasters, nicely molded door and window casings, heavy pedimental doorheads,--all are of excellent design and more carefully wrought than in average Colonial work. Finest of all, perhaps, is a chamber on the second floor overlooking the river that must, according to the very nature of things, have been the boudoir of the mistress of Mount Pleasant. The architectural treatment of the fireplace end of this room, with exquisite carving above the overmantel panel and above the closet doors at each side, is greatly admired by all who see it. The erection of Mount Pleasant was begun late in 1761 by John Macpherson, a sea captain of Clunie, Scotland, who amassed a fortune and lost an arm in the adventurous practice of privateering. Here he lived in manorial splendor, entertaining the most eminent personages of the day with munificent hospitality and employing himself with numerous ingenious inventions, notably a practical device for moving brick and stone houses intact. He wrote on moral philosophy, lectured on astronomy and published the first city directory in 1785, a unique volume giving the names in direct house-to-house sequence and having such notations as, "I won't tell you", "What you please", and "Cross woman" against street numbers where he found the occupants suspicious or unresponsive to his queries. Meeting reverses in some of his financial affairs and longing for further adventures at sea, Macpherson sought the chief command of the American Navy at the outbreak of the Revolution. This being denied him he leased Mount Pleasant to Don Juan de Merailles, the Spanish ambassador. But to be near General Washington, Merailles had to remove to Morristown and there he soon died.