English Gothic architecture Exeter Cathedral is built in this style, as is the crossing of Ely Cathedral, (including the famous octagonal lantern, built between 1322 and 1328 to replace the fallen central tower), three west bays of the choir and the Lady Chapel. In Scotland, Melrose Abbey was a noteworthy example, though much of it is now in ruins. The Perpendicular Gothic period (or simply Perpendicular) is the third historical division of English Gothic architecture, and is so-called because it is characterised by an emphasis on vertical lines. An alternative name, the Rectilinear, was suggested by Edmund Sharpe, and is preferred by some
Mather Tower footprint. This resulted in a multitude of tall, slender, "setback" towers, of which the Mather is an extreme and unusual example. The top floor of the octagonal spire has only of floor space. Mather Company's founder, Alonzo Mather (a descendent of Cotton Mather) is said to be responsible for a number of the building's distinctive design features, including the octagonal tower. Initial plans called for construction of a second, identical building on North Michigan Avenue, behind the Mather and connected to it by a ground-floor arcade, but onset of the Great Depression in 1929 forced its cancellation. By the 1990s