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Ineffabilis Deus (1854)

Letters Apostolic on the Dogmatic Definition of the Immaculate Conception of the Virgin Mother of God

Pope Pius IX

Edition & AttributionTranscribed from a dated scan; artifacts may remain. Translator, publisher and source details.
Text source
OCR-derived transcription
Translator
Anonymous. The translation is printed without attribution in Bryant's volume; it is not credited to him and no translator is named anywhere in the chapter or the front matter. Do not attribute it to Bryant without its own evidence.
Series
Not part of a named series
Editor
John Delavan Bryant (1811-1877), the volume's author, who prints the bull as his Chapter XIX
Publisher
P. Donahoe, Boston
Year
1855
Revision
Transcribed from the Internet Archive DjVu XML of IA item TheImmaculateConception, using the scan's own per-word coordinates and paragraph grouping: page furniture (running heads, folios, the printer's signature marks 23*/24*/25*, and Google's watermark) is rejected line by line, and a paragraph is joined across a page break when the first block on the page begins at that page's measured body-left margin rather than at the first-line indent. 8 OCR repairs were applied, every one read off the page image at archive.org/download/TheImmaculateConception/page/n<leaf>_w1600.jpg (leaf = printed page + 6) and each required to match exactly once; they are listed with their reasons in ingestion/works/transcribe-ineffabilis-deus.ts. Printed readings are preserved as printed, including the 1855 compositor's "Immacalate Conception" (p. 286) and "Heavenly Hosst" (p. 291), both confirmed on the page images and against a second independent scan of the same edition (IA ImmaculateConception), which agrees with this one on both. That second scan was also diffed against this transcription word by word; the two witnesses agree to 98.6% before furniture-stripping, and every divergence was resolved against a page image.
Rights
Public Domain
Accessed
2026-09-18
License
public-domain-base
edition
The Immaculate Conception of the Most Blessed Virgin Mary, Mother of God, a Dogma of the Catholic Church (Boston, 1855), Chapter XIX, printed pages 269-294. The modern vatican.va English translation is NOT public domain and is not used here.

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