Encyclicals
- Ad Diem Illum Laetissimum - On the Immaculate Conception - 2.2.1904
- Acerbo Nimis - On teaching of Christian doctrine - 4.15.1905
- Communium Rerum - On St. Anselm of Aosta - 4.21.1909
- Editae Saepe - On St. Charles Borromeo - 5.26.1910
- E Supremi - On the restoration of all things in Christ - 10.4.1903
- Gravissimo Officii Munere - On French associations of worship - 8.10.1906
- Iamdudum - On the law of separation in Portugal - 5.24.1911
- Il Fermo Proposito - On Catholic action in Italy - 6.11.1905
- Iucunda Sane - On Pope Gregory the Great - 3.12.1904
- Lacrimabili Statu - On the Indians of South America - 6.7.1912
- Pascendi Dominici Gregis - On the doctrines of the modernists - 9.8.1907
- Pieni L'Animo - On the clergy in Italy - 7.28.1906
- Singulari Quadam - On labor organizations - 9.24.1912
- Tribus Circiter - On the Mariavites or mystic priests of Poland - 4.5.1906
- Une Fois Encore - On the separation of Church and state - 1.6.1907
- Vehementer Nos - On the French law of separation - 2.11.1906