; ▁it ▁was ▁replaced ▁by ▁a ▁two - manual ▁Cas avant ▁Fr ères ▁organ ▁in ▁ 1 9 8 1 - 1 9 8 2 . ▁ ▁Architecture ▁ ▁The ▁present ▁brick , ▁Ty nd all ▁stone ▁and ▁terra ▁c otta ▁structure ▁was ▁raised ▁in ▁an ▁un orn ament ed ▁ne o - G oth ic ▁style . ▁Its ▁chief ▁distingu ishing ▁characteristic ▁is ▁a ▁ro od ▁screen ▁at ▁the ▁ch an cel ▁steps . ▁The ▁ro od ▁screen , ▁pul pit , ▁lect ern , ▁and ▁high ▁alt ar ▁are ▁made ▁of ▁Car r ara ▁w are ▁( D oul ton ▁white ▁terra ▁c otta ▁res emb ling ▁Italian ▁Car rera ▁mar ble ). ▁The ▁corner stone ▁was ▁laid ▁in ▁ 1 9 1 2 ▁by ▁the ▁Governor ▁General ▁of ▁Canada , ▁Prince ▁Arthur , ▁Duke ▁of ▁Con n aught . ▁The ▁building ' s ▁foundation ▁is ▁made ▁of ▁field stone ▁( which ▁includes ▁gran ite , ▁gab bro , ▁di or ite , ▁g ne iss , ▁sch ist ▁and ▁dol om ite ). ▁ ▁The ▁nave ▁is ▁ 4 0 × 1 4 m ▁in ▁size ; ▁it ▁together ▁with ▁the ▁tr anse pts ▁originally ▁sat ▁ 1 1 0 0 . ▁The ▁se ating ▁capacity ▁has ▁been ▁reduced ▁to ▁ 8 0 0 ▁with ▁the ▁removal ▁of ▁p ew s ▁at ▁the ▁lit urg ical ▁west ▁end ▁and ▁to ▁accommod ate ▁a ▁nave ▁alt ar ▁at ▁the ▁crossing . ▁Queen ▁Elizabeth ▁II ▁and ▁the ▁Duke ▁of ▁Edinburgh ▁have ▁wor