Members of Faculty of St. John’s University to Be In Charge Catholics in the Bismarck vicinity will participate in a spiritual revival during the next two weeks in a series of mission services at St. Mary's pro cathedral, Rev. Father John A. Slag has announced. The missions, which are to be in augurated at 8 o’clock mass Sunday morning, will be under the direction of Rev. Fathers George Scheffeld and Method Prowall, of the Order of St. Benedict. They are members of the faculty of St. John’s university at Collegeville, Minn. Services will be held at 7:30 each evening during the next two weeks and daily devotions will be held in the mornings. During the first week, evening mis sions will be conducted for women only, it was announced. Commencing Oct. 25, a similar service will be held for men. While the missions are designed primarily for Catholics, Father Slag said, they are open to persons of all creeds and anyone desiring to attend will be welcome. The series is being conducted in conformity with the policy of the Catholic church to observe a period of spiritual renewal every five years, according to Father Slag. The last series held in Bismarck was in 1926. Fathers Scheffeld and Prowall ar rived in the city Saturday noon.