In the chapter of Christchurch in Oxford the first vacant canonry, not being one of the two canonries which are respectively annexed to regius professorships in the university of Oxford, shall immediately become and be permanently annexed and united to the lady Margaret’s professorship of divinity in the said university, and shall and may be held by the present and every future lady Margaret’s professor of divinity therein; and upon such annexation as aforesaid the canonry in the cathedral church of Worcester, which is now annexed to the last-mentioned professorship, shall be ipso facto detached therefrom, and shall become vacant; and the canonry secondly-vacant in the said chapter of Christchurch shall be subject to the provisions herein-after contained respecting the endowment of archdeaconries by the annexation of canonries thereto.