Apostolic letter of Pope Pius IX to Protestants and other non-Catholics.

Míreanna comhchosúla

• Encyclical letter of Our Most Holy Lord Pius IX : by divine providence Pope, to all patriarchs, primates, archbishops, and other ordinaries in the grace and communion of the Apostolic See
  de réir: Pius IX, Pope, 1792-1878
  Cruthaithe: (1874)
• Letter, To: Bishops of Province of St. Louis (Archbishop P. Kenrick), From: Pope Pius IX, December 6, 1855.
  de réir: Pius IX, Pope, 1792-1878.
  Cruthaithe: (1855)
• Letter, To: Bishop Francis Kenrick, From: Pius IX, April 7, 1847 .
  de réir: Pope Pius IX, 1792-1878.
  Cruthaithe: (1847)
• Syllabus for the people : a review of the propositions condemned by His Holiness Pope Pius IX, with a text of the condemned list
  de réir: Pius IX, Pope, 1792-1878
  Cruthaithe: (1875)
• An Authentic Refutation of the Falsehoods Published by the Prussian, Swiss and Italian Governments and the Subsidized Press of England by the Illustrious Pontiff Pope Pius IX
  de réir: Pius IX, Pope, 1792-1878
  Cruthaithe: (1874)