normally grind to a halt. The tracing floors themselves were covered with plaster-of-Paris, which could be relaid and smoothed down after each set of designs were finished with. The 14th-century tracing house at York (also known as the Mason's Loft) survives on the upper storey of the corridor leading to the Chapter House, the complex web of lines and curves scratched into the floor show the countless designs that were worked out in there. The high-quality carpentry and the inclusion of a garderobe and fireplace in the York tracing house also indicate the rising status of the architect around the 14th century. See also Branchwork using tree branch forms, late northern Gothic Church window French Gothic stained glass windows Rosette (design) Stained glass Three hares References Further reading Eespecially 120ff. Ornaments (architecture) Windows Gothic architecture Church architecture