21. This and the Lambeth Conference are the only occasions in which this cathedra is used. 22. These were asserted in the nature of an " ex cathedra " pronouncement. 23. On the north side of the sanctuary sits the cathedra , along with two benches. 24. The cathedra in 1682 was formed by 13 metropolitan, 6 archbishops and 49 bishops. 25. Its interior was reconfigured and a second cathedra for the bishop was placed in the church. 26. The church includes a new bishop s cathedra ( episcopal chair ) and ambo of mahogany. 27. The organ may be operated from a console in the loft of another behind the cathedra . 28. Or would he only need to attach " this is ex cathedra " to his statement? 29. We just like making pontifical statements and issuing ex cathedra " diktat " s. 30. But when he speaks in matters pertaining to the science of gridology, he speaks ex cathedra .