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1

Inscrutabili Dei Consilio (On the Evils of Society) April 21, 1878

2

Quod Apostolici Muneris (On Socialism) December 28, 1878

3

Aeterni Patris (On the Restoration of Philosophy) August 4, 1879

4

Arcanum Divinae (On Christian Marriage) February 10, 1880

5

Sancta Dei Civitas (On Mission Societies) December 3, 1880

6

Rerum Novarum (On Capital and Labour) May 15, 1881 - Part 1

7

Rerum Novarum (On Capital and Labour) May 15, 1881 - Part 2

8

Pastoralis Vigilantiae (On Religious Union) June 25, 1881

9

Diuturnum (On the Origin of Civil Power) June 29, 1881

10

Licet Multa (On Catholics in Belgium) August 3, 1881

11

Etsi Nos (On Conditions in Italy) Feburary 15, 1882

12

Auspicato Concessum (On St. Francis of Assisi) September 17, 1882

13

Cum Multa (On Conditions in Spain) December 8, 1882

14

Supremi Apostolatus Officio (On Devotion to the Rosary) September 1, 1883

15

Nobilissima Gallorum Gens (On the Religious Question in France) February 8, 1884

16

Humanum Genus (On Freemasonry) April 20, 1884

17

Superiore Anno (On the Recitation of the Rosary) August 30, 1884

18

Immortale Dei (On the Christian Constitution of States) November 1, 1885

19

Spectata Fides (On Christian Education) November 27, 1885

20

Quod Auctoritate (Proclaiming a Jubilee) December 22, 1885

21

Vi è ben noto (On the Rosary and Public LIfe) September 20, 1887

22

Officio Sanctissimo (On the Church in Bavaria) December 22, 1887

23

Quod Anniversarius (On His Sacerdotal Jubilee) April 1, 1888

24

In Plurimis (On the Abolition of Slavery) May 5, 1888

25

Libertas (On the Nature of Human Liberty) June 20, 1888

26

Saepe Nos (On Boycotting in Ireland) June 24, 1888

27

Paterna Caritas (On Reunion with Rome) July 25, 1888

28

Quam Aerumnosa (On Italian Immigrants) December 10, 1888

29

Exeunte Iam Anno (On the Right Ordering of Christian Life) December 25, 1888

30

Quamquam Pluries (On Devotion to St. Joseph) August 15, 1889

31

Sapientiae Christianae (On Christians as Citizens) January 10, 1890

32

Dall'alto dell'Apostolico Seggio (On Freemasonry in Italy) October 15, 1890

33

Pastoralis Officii (On the Morality of Duelling) September 12, 1891

34

Octobri Mense (On the Rosary) September 22, 1891

35

Au Milieu Des Sollicitudes (On the Church and State in France) February 16, 1892

36

Quarto Abeunte Saeculo (On Christopher Columbus) July 16, 1892

37

Laetitiae Sanctae (Commending Devotion to the Rosary) September 8, 1893

38

Providentissimus Deus (On the Study of Holy Scripture) November 18, 1893

39

Praeclara Gratulationis Publicae (The Reunion of Christendom) June 20, 1894

40

Iucunda Semper Expectatione (On the Rosary) September 8, 1894

41

Christi Nomen (On Propagation of the Faith and Eastern Churches) December 24, 1894

42

Longinqua (On Catholicism in the United States) January 6, 1895

43

Satis Cognitum (On the Unity of the Church) June 29, 1896 - Part 1

44

Satis Cognitum (On the Unity of the Church) June 29, 1896 - Part 2

45

Fidentem Piumque Animum (On the Rosary) September 20, 1896

46

Divinum Illud Munus (On the Holy Spirit) May 9, 1897

47

Augustissimae Virginis Mariae (On the Confraternity of the Holy Rosary) September 12, 1897

48

Affari Vos (On the Manitoba School Question) December 8, 1897

49

Annum Sacrum (Consecration to the Sacred Heart) May 25, 1898

50

Caritatis Studium (On the Church in Scotland) July 21, 1898

51

Spesse Volte (On the Suppression of Catholic Institutions) August 5, 1898

52

Diuturni Temporis (On the Rosary) September 5, 1898

53

Depuis Le Jour (On the Education of the Clergy) September 8, 1899

54

Tametsi Futura Prospicientibus (On Jesus Christ the Redeemer) November 1, 1900

55

Graves De Communi Re (On Christian Democracy) January 18, 1901

56

In Amplissimo (On the Church in the United States) April 15, 1902

57

Mirae Caritatis (On the Holy Eucharist) May 28, 1902

58

Fin Dal Principio (On the Education of the Clergy) December 8, 1902