1
01 - E Supremi (On the Restoration of All things in Christ) October 4, 1903
2
02 - Ad Diem Illum Laetissimum (On the Immaculate Conception) February 2, 1904
3
03 - Iucunda Sane (On Pope Gregory the Great) March 12, 1904
4
04 - Acerbo Nimis (On Teaching Christian Doctrine) April 15, 1905
5
05 - Extracts from Il Fermo Proposito (On Catholic Social Action) June 11, 1905
6
06 - Vehementer Nos (On the French Law of Separation) February 11, 1906
7
07 - Tribus Circiter (On the Mariavites: Mystic Priests of Poland) April 5, 1906
8
08 - Pieni L’animo (On the Clergy in Italy) July 28, 1906
9
09 - Gravissimo Officii Munere (On French Associations of Worship) August 10, 1906
10
10 - Une Fois Encore (On the Separation of Church and State) January 6, 1907
11
11 - Communium Rerum (On St. Anselm of Aosta) April 21, 1909, Part 1
12
12 - Communium Rerum (On St. Anselm of Aosta) April 21, 1909, Part 2
13
13 - Editae Saepe (On St. Charles Borromeo) May 26, 1910
14
14 - Iamdudum (On the Law of Separation in Portugal) May 24, 1911
15
15 - Lacrimabili Statu (On the Indians of South America) June 7, 1912