century, the Hamilton Building was replaced with a very grand two-court building with a decorated west front facing the High Street, called the 'Nova Erectio', or New Building. This foundation is widely considered to have been one of the finest 17th-century buildings in Scotland. Decorated fragments from it, including a complete exterior stairway, were rescued and built into its 19th-century replacement. In Sir Walter Scott's best-selling 1817 novel Rob Roy, set at the time of the Jacobite rising of 1715, the lead character fights a duel in the New Building grounds before the contest is broken up by Rob Roy MacGregor. Over the following centuries, the university's size and scope continued to expand. In 1757 it built the Macfarlane Observatory and later Scotland's first public museum, the Hunterian. It was a center of the Scottish Enlightenment and subsequently of the Industrial Revolution, and its expansion in the High Street was constrained. The area around the university declined as well-off residents moved westwards with the expansion of the city and overcrowding of the immediate area by less well-off residents. It was this rapid slumming of the area that was a chief catalyst of the university's migration westward. Gilmorehill In 1870, the university moved to a (then greenfield) site on Gilmorehill in the West End of the city, around west of its previous location, enclosed by a large meander of the River Kelvin. The original site on the High Street was sold to the City of Glasgow Union Railway and replaced by the college goods yard. The new-build campus was designed by Sir George Gilbert Scott in the Gothic revival style. The largest of these buildings echoed, on a far grander scale, the original High Street campus's twin-quadrangle layout, and may have been inspired by Ypres' late-medieval cloth hall; Gilmorehill, in turn, inspired the design of the Clocktower complex of buildings for the new University of Otago in New Zealand. In 1879, Gilbert Scott's son, Oldrid, completed this original vision by building an open undercroft forming two quadrangles, above which is his grand Bute Hall (used for examinations and graduation ceremonies), named after its donor, John Crichton-Stuart, 3rd Marquess of Bute. Oldrid also later added a spire to the building's signature gothic bell tower in 1887, bringing it to a total height of some . The local Bishopbriggs blond sandstone cladding and Gothic design of the building's exterior belie the modernity of