6. The arrangement of the Psalter has an intimate connection with the
Divine Office and the Liturgy; and by these new decrees regarding the
Office and the Psalms a first step in the improvement of the Breviary
and the Missal has been taken. These matters will be dealt with by a
commission of learned men which is soon to be formed. Amongst other
things that this first step established was that the recitation of the
Scripture lessons with the proper responses according to the rubrics
should receive due honour and more frequent recitation, and that in the
Liturgy the most ancient Masses of the Sundays throughout the year,
especially those of Lent, should be restored to their places.

7. The use of the old order of Psalms found in the Roman Breviary is
abolished and interdicted from 1st January, 1913, and the use of the new
Psalter for all clergy, secular and regular, who used the Roman Breviary
as revised by Pius V., Clement VIII., Urban VIII., and Leo XIII., and
those who continue to use the old order do not satisfy their obligation.

8. Ecclesiastical superiors are to introduce the new order of the
Psalter, and chapters are permitted to use it if the majority of the
members agree to its introduction.

9. Establishment and declaration of the validity and efficacy of the
Bull, notwithstanding all previous apostolic constitutions and rulings,
whether general or particular. Any person infringing these papal
abolitions, revocations, etc., sins and merits God's anger.

10. Date and place of promulgation.