"Quanta cura"

(Encyclical Letter of H. H. Pius IX about the errors of our time)

"Syllabus"

(Index of principal errors and false doctrines of our time of H. H, Pius IX)

"Lamentabili"

(Apostolic Constitution of Saint Pius X condemning some modern propositions)

"Pascendi"

(Encyclical Letter of H. H. Pius X about the doctrine of the modernists)

"Sodalitium Pianum"

(Program of the Sodalitium founded by Monsignor Benigni with the expresed aproval of Saint Pius X)

"Short Critical Exam of the Novus Ordo Missae"

(The redacted text by Monsignor Guerard des Lauriers and signed by the Cardinals Alfredo Ottaviani and Antonio Bacci)