Newman continued as a High Anglican controversialist until 1841, when he published Tract 90, which proved the last of the series. This detailed examination of the Thirty-Nine Articles suggested that their framers directed their negations not against Catholicism's authorised creed, but only against popular errors and exaggerations. Though this was not altogether new, Archibald Campbell Tait, with three other senior tutors, denounced it as "suggesting and opening a way by which men might violate their solemn engagements to the university". Other heads of houses and others in authority joined in the alarm. At the request of Richard Bagot, the Bishop of Oxford, the publication of the "Tracts" came to an end.