A Compilation of all of Pope St Pius X's EncyclicalsE Supremi (October 4, 1903) 4ON THE RESTORATION OF ALL THINGS IN CHRISTAd Diem Illum Laetissimum (February 2, 1904) 18ON THE IMMACULATE CONCEPTIONIucunda Sane (March 12, 1904) 37ON POPE GREGORY THE GREATAcerbo Nimis (April 15, 1905) 60ON TEACHING CHRISTIAN DOCTRINEIl Fermo Proposito (June 11, 1905) 75ON CATHOLIC ACTION IN ITALYVehementer Nos (February 11, 1906) 92ON THE FRENCH LAW OF SEPARATIONTribus Circiter (April 5, 1906) 108ON THE MARIAVITES OR MYSTIC PRIESTS OF POLANDPieni L'Animo (July 28, 1906) 115ON THE CLERGY IN ITALYGravissimo Officii Munere (August 10, 1906) 124ON FRENCH ASSOCIATIONS OF WORSHIPUne Fois Encore (January 6, 1907) 130ON THE SEPARATION OF CHURCH AND STATEPascendi Dominici Gregis (September 8, 1907) 140ON THE DOCTRINES OF THE MODERNISTSCommunium Rerum (April 21, 1909) 208ON ST. ANSELM OF AOSTAEditae Saepe (May 26, 1910) 243ON ST. CHARLES BORROMEOIamdudum (May 24, 1911) 269ON THE LAW OF SEPARATION IN PORTUGALLacrimabili Statu (June 7, 1912) 278ON THE INDIANS OF SOUTH AMERICASingulari quadam (September 24, 1912) 284ON LABOR ORGANIZATIONS