# How we verify the text

See the source, comparison coverage, and unresolved work for every volume.

We import historical English source text with its section, note, and page references. We compare available transcriptions with OCR associated with printed scans. The source words remain unchanged when a comparison fails.

The comparison normalizes case, accents, punctuation, and line-end hyphenation, then compares word counts. A candidate page must score at least 85% and lead the next candidate by ten percentage points; neighboring pages must stay in order. Reported averages include only selected pages. Word order is not checked. OCR can misread letters, columns, and footnotes. A high match rate measures agreement with OCR. It does not certify a passage as exact. Use the printed-page link to inspect the edition yourself.

## Current coverage

38 volumes are registered. 19,938 printed pages have comparison evidence. Pending rows have not yet been compared.

## ANF 1: ANF01. The Apostolic Fathers with Justin Martyr and Irenaeus

Status: partial. 554 of 571 source page groups aligned with independent scan OCR; 17 unresolved. Mean normalized token agreement among selected pages 97.13%. 543 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 554 / 571 pages; 1028 passages. OCR agreement: 97.1%

[Text](https://www.ccel.org/ccel/s/schaff/anf01.xml)
[Source scan](https://www.ccel.org/ccel/schaff/anf01/Page_Index.html)
[Independent OCR scan](https://archive.org/details/antenicenefathers01robe)

## ANF 2: ANF02. Fathers of the Second Century: Hermas, Tatian, Athenagoras, Theophilus, and Clement of Alexandria (Entire)

Status: partial. 579 of 617 source page groups aligned with independent scan OCR; 38 unresolved. Mean normalized token agreement among selected pages 96.89%. 569 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 579 / 617 pages; 516 passages. OCR agreement: 96.9%

[Text](https://www.ccel.org/ccel/s/schaff/anf02.xml)
[Source scan](https://www.ccel.org/ccel/schaff/anf02/Page_Index.html)
[Independent OCR scan](https://archive.org/details/antenicenefather02robeuoft)

## ANF 3: ANF03. Latin Christianity: Its Founder, Tertullian

Status: partial. 694 of 703 source page groups aligned with independent scan OCR; 9 unresolved. Mean normalized token agreement among selected pages 97.01%. 690 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 694 / 703 pages; 793 passages. OCR agreement: 97.0%

[Text](https://www.ccel.org/ccel/s/schaff/anf03.xml)
[Source scan](https://www.ccel.org/ccel/schaff/anf03/Page_Index.html)
[Independent OCR scan](https://archive.org/details/antenicenefather03robeuoft)

## ANF 4: ANF04. Fathers of the Third Century: Tertullian, Part Fourth; Minucius Felix; Commodian; Origen, Parts First and Second

Status: partial. 645 of 664 source page groups aligned with independent scan OCR; 19 unresolved. Mean normalized token agreement among selected pages 96.94%. 637 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 645 / 664 pages; 1013 passages. OCR agreement: 96.9%

[Text](https://www.ccel.org/ccel/s/schaff/anf04.xml)
[Source scan](https://www.ccel.org/ccel/schaff/anf04/Page_Index.html)
[Independent OCR scan](https://archive.org/details/antenicenefather04robeuoft)

## ANF 5: ANF05. Fathers of the Third Century: Hippolytus, Cyprian, Caius, Novatian, Appendix

Status: partial. 660 of 669 source page groups aligned with independent scan OCR; 9 unresolved. Mean normalized token agreement among selected pages 97.61%. 658 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 660 / 669 pages; 846 passages. OCR agreement: 97.6%

[Text](https://www.ccel.org/ccel/s/schaff/anf05.xml)
[Source scan](https://www.ccel.org/ccel/schaff/anf05/Page_Index.html)
[Independent OCR scan](https://archive.org/details/antenicenefather05robeuoft)

## ANF 6: ANF06. Fathers of the Third Century: Gregory Thaumaturgus, Dionysius the Great, Julius Africanus, Anatolius, and Minor Writers, Methodius, Arnobius

Status: partial. 514 of 530 source page groups aligned with independent scan OCR; 16 unresolved. Mean normalized token agreement among selected pages 96.87%. 504 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 514 / 530 pages; 872 passages. OCR agreement: 96.9%

[Text](https://www.ccel.org/ccel/s/schaff/anf06.xml)
[Source scan](https://www.ccel.org/ccel/schaff/anf06/Page_Index.html)
[Independent OCR scan](https://archive.org/details/antenicenefather06robeuoft)

## ANF 7: ANF07. Fathers of the Third and Fourth Centuries: Lactantius, Venantius, Asterius, Victorinus, Dionysius, Apostolic Teaching and Constitutions, Homily, and Liturgies

Status: partial. 545 of 574 source page groups aligned with independent scan OCR; 29 unresolved. Mean normalized token agreement among selected pages 98.01%. 543 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 545 / 574 pages; 512 passages. OCR agreement: 98.0%

[Text](https://www.ccel.org/ccel/s/schaff/anf07.xml)
[Source scan](https://www.ccel.org/ccel/schaff/anf07/Page_Index.html)
[Independent OCR scan](https://archive.org/details/antenicenefather07robeuoft)

## ANF 8: ANF08. The Twelve Patriarchs, Excerpts and Epistles, The Clementia, Apocrypha, Decretals, Memoirs of Edessa and Syriac Documents, Remains of the First Age

Status: partial. 764 of 774 source page groups aligned with independent scan OCR; 10 unresolved. Mean normalized token agreement among selected pages 98.13%. 764 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 764 / 774 pages; 1538 passages. OCR agreement: 98.1%

[Text](https://www.ccel.org/ccel/s/schaff/anf08.xml)
[Source scan](https://www.ccel.org/ccel/schaff/anf08/Page_Index.html)
[Independent OCR scan](https://archive.org/details/antenicenefather08robeuoft)

## ANF 9: ANF09. The Gospel of Peter, The Diatessaron of Tatian, The Apocalypse of Peter, the Vision of Paul, The Apocalypse of the Virgin and Sedrach, The Testament of Abraham, The Acts of Xanthippe and Polyxena, The Narrative of Zosimus, The Apology of Aristides, The Epistles of Clement (complete text), Origen’s Commentary on John, Books 1–10, and Commentary on Matthew, Books 1, 2, and 10–14.

Status: partial. 463 of 481 source page groups aligned with independent scan OCR; 18 unresolved. Mean normalized token agreement among selected pages 96.04%. 392 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 463 / 481 pages; 504 passages. OCR agreement: 96.0%

[Text](https://www.ccel.org/ccel/s/schaff/anf09.xml)
[Source scan](https://www.ccel.org/ccel/schaff/anf09/Page_Index.html)
[Independent OCR scan](https://archive.org/details/antenicenefather09robeuoft)

## ANF 10: ANF10. Bibliographic Synopsis; General Index

Status: pending. ANF10 is uncorrected OCR. Comparing that OCR with itself is not independent verification.

Coverage: 0 / 280 pages; 278 passages. OCR agreement: Not measured

[Text](https://www.ccel.org/ccel/s/schaff/anf10.xml)
[Source scan](https://archive.org/details/antenicenefather10robeuoft)
Independent scan pending

## NPNF1 1: NPNF1-01. The Confessions and Letters of St. Augustine, with a Sketch of his Life and Work

Status: partial. 578 of 589 source page groups aligned with independent scan OCR; 11 unresolved. Mean normalized token agreement among selected pages 97.86%. 570 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 578 / 589 pages; 593 passages. OCR agreement: 97.9%

[Text](https://www.ccel.org/ccel/s/schaff/npnf101.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf101/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn01auguuoft)

## NPNF1 2: NPNF1-02. St. Augustine's City of God and Christian Doctrine

Status: partial. 597 of 603 source page groups aligned with independent scan OCR; 6 unresolved. Mean normalized token agreement among selected pages 98.00%. 595 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 597 / 603 pages; 877 passages. OCR agreement: 98.0%

[Text](https://www.ccel.org/ccel/s/schaff/npnf102.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf102/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn02auguuoft)

## NPNF1 3: NPNF1-03. On the Holy Trinity; Doctrinal Treatises; Moral Treatises

Status: partial. 500 of 508 source page groups aligned with independent scan OCR; 8 unresolved. Mean normalized token agreement among selected pages 98.39%. 498 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 500 / 508 pages; 845 passages. OCR agreement: 98.4%

[Text](https://www.ccel.org/ccel/s/schaff/npnf103.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf103/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn03auguuoft)

## NPNF1 4: NPNF1-04. Augustine: The Writings Against the Manichaeans and Against the Donatists

Status: partial. 597 of 615 source page groups aligned with independent scan OCR; 18 unresolved. Mean normalized token agreement among selected pages 97.56%. 594 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 597 / 615 pages; 762 passages. OCR agreement: 97.6%

[Text](https://www.ccel.org/ccel/s/schaff/npnf104.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf104/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn04auguuoft)

## NPNF1 5: NPNF1-05. St. Augustine: Anti-Pelagian Writings

Status: partial. 561 of 580 source page groups aligned with independent scan OCR; 19 unresolved. Mean normalized token agreement among selected pages 97.76%. 557 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 561 / 580 pages; 1165 passages. OCR agreement: 97.8%

[Text](https://www.ccel.org/ccel/s/schaff/npnf105.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf105/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn05auguuoft)

## NPNF1 6: NPNF1-06. St. Augustine: Sermon on the Mount; Harmony of the Gospels; Homilies on the Gospels

Status: partial. 528 of 542 source page groups aligned with independent scan OCR; 14 unresolved. Mean normalized token agreement among selected pages 95.06%. 513 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 528 / 542 pages; 434 passages. OCR agreement: 95.1%

[Text](https://www.ccel.org/ccel/s/schaff/npnf106.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf106/Page_Index.html)
[Independent OCR scan](https://archive.org/details/aselectlibrary06unknuoft)

## NPNF1 7: NPNF1-07. St. Augustine: Homilies on the Gospel of John; Homilies on the First Epistle of John; Soliloquies

Status: partial. 538 of 549 source page groups aligned with independent scan OCR; 11 unresolved. Mean normalized token agreement among selected pages 97.67%. 536 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 538 / 549 pages; 298 passages. OCR agreement: 97.7%

[Text](https://www.ccel.org/ccel/s/schaff/npnf107.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf107/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn07auguuoft)

## NPNF1 8: NPNF1-08. St. Augustine: Exposition on the Book of Psalms

Status: partial. 686 of 690 source page groups aligned with independent scan OCR; 4 unresolved. Mean normalized token agreement among selected pages 95.88%. 674 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 686 / 690 pages; 407 passages. OCR agreement: 95.9%

[Text](https://www.ccel.org/ccel/s/schaff/npnf108.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf108/Page_Index.html)
[Independent OCR scan](https://archive.org/details/aselectlibrary08unknuoft)

## NPNF1 9: NPNF1-09. St. Chrysostom: On the Priesthood; Ascetic Treatises; Select Homilies and Letters; Homilies on the Statutes

Status: partial. 428 of 450 source page groups aligned with independent scan OCR; 22 unresolved. Mean normalized token agreement among selected pages 97.92%. 423 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 428 / 450 pages; 250 passages. OCR agreement: 97.9%

[Text](https://www.ccel.org/ccel/s/schaff/npnf109.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf109/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn09auguuoft)

## NPNF1 10: NPNF1-10. St. Chrysostom: Homilies on the Gospel of Saint Matthew

Status: partial. 504 of 526 source page groups aligned with independent scan OCR; 22 unresolved. Mean normalized token agreement among selected pages 95.89%. 487 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 504 / 526 pages; 250 passages. OCR agreement: 95.9%

[Text](https://www.ccel.org/ccel/s/schaff/npnf110.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf110/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn10auguuoft)

## NPNF1 11: NPNF1-11. Saint Chrysostom: Homilies on the Acts of the Apostles and the Epistle to the Romans

Status: partial. 550 of 586 source page groups aligned with independent scan OCR; 36 unresolved. Mean normalized token agreement among selected pages 95.86%. 517 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 550 / 586 pages; 276 passages. OCR agreement: 95.9%

[Text](https://www.ccel.org/ccel/s/schaff/npnf111.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf111/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn11auguuoft)

## NPNF1 12: NPNF1-12. Saint Chrysostom: Homilies on the Epistles of Paul to the Corinthians

Status: partial. 420 of 424 source page groups aligned with independent scan OCR; 4 unresolved. Mean normalized token agreement among selected pages 98.22%. 419 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 420 / 424 pages; 224 passages. OCR agreement: 98.2%

[Text](https://www.ccel.org/ccel/s/schaff/npnf112.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf112/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn12auguuoft)

## NPNF1 13: NPNF1-13. Saint Chrysostom: Homilies on Galatians, Ephesians, Philippians, Colossians, Thessalonians, Timothy, Titus, and Philemon

Status: partial. 541 of 547 source page groups aligned with independent scan OCR; 6 unresolved. Mean normalized token agreement among selected pages 96.77%. 539 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 541 / 547 pages; 304 passages. OCR agreement: 96.8%

[Text](https://www.ccel.org/ccel/s/schaff/npnf113.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf113/Page_Index.html)
[Independent OCR scan](https://archive.org/details/aselectlibrary13unknuoft)

## NPNF1 14: NPNF1-14. Saint Chrysostom: Homilies on the Gospel of St. John and the Epistle to the Hebrews

Status: partial. 503 of 519 source page groups aligned with independent scan OCR; 16 unresolved. Mean normalized token agreement among selected pages 95.91%. 497 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 503 / 519 pages; 293 passages. OCR agreement: 95.9%

[Text](https://www.ccel.org/ccel/s/schaff/npnf114.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf114/Page_Index.html)
[Independent OCR scan](https://archive.org/details/aselectlibrary14unknuoft)

## NPNF2 1: NPNF2-01. Eusebius Pamphilius: Church History, Life of Constantine, Oration in Praise of Constantine

Status: partial. 542 of 589 source page groups aligned with independent scan OCR; 47 unresolved. Mean normalized token agreement among selected pages 95.95%. 502 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 542 / 589 pages; 735 passages. OCR agreement: 96.0%

[Text](https://www.ccel.org/ccel/s/schaff/npnf201.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf201/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn18901scha)

## NPNF2 2: NPNF2-02. Socrates and Sozomenus Ecclesiastical Histories

Status: partial. 426 of 430 source page groups aligned with independent scan OCR; 4 unresolved. Mean normalized token agreement among selected pages 97.68%. 423 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 426 / 430 pages; 561 passages. OCR agreement: 97.7%

[Text](https://www.ccel.org/ccel/s/schaff/npnf202.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf202/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn02scha)

## NPNF2 3: NPNF2-03. Theodoret, Jerome, Gennadius, & Rufinus: Historical Writings

Status: partial. 546 of 567 source page groups aligned with independent scan OCR; 21 unresolved. Mean normalized token agreement among selected pages 96.07%. 529 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 546 / 567 pages; 927 passages. OCR agreement: 96.1%

[Text](https://www.ccel.org/ccel/s/schaff/npnf203.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf203/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn03schauoft)

## NPNF2 4: NPNF2-04. Athanasius: Select Works and Letters

Status: partial. 648 of 668 source page groups aligned with independent scan OCR; 20 unresolved. Mean normalized token agreement among selected pages 95.67%. 611 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 648 / 668 pages; 553 passages. OCR agreement: 95.7%

[Text](https://www.ccel.org/ccel/s/schaff/npnf204.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf204/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn04schauoft)

## NPNF2 5: NPNF2-05. Gregory of Nyssa: Dogmatic Treatises, Etc.

Status: partial. 528 of 549 source page groups aligned with independent scan OCR; 21 unresolved. Mean normalized token agreement among selected pages 97.39%. 522 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 528 / 549 pages; 376 passages. OCR agreement: 97.4%

[Text](https://www.ccel.org/ccel/s/schaff/npnf205.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf205/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn05scha)

## NPNF2 6: NPNF2-06. Jerome: The Principal Works of St. Jerome

Status: partial. 524 of 527 source page groups aligned with independent scan OCR; 3 unresolved. Mean normalized token agreement among selected pages 98.25%. 524 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 524 / 527 pages; 389 passages. OCR agreement: 98.2%

[Text](https://www.ccel.org/ccel/s/schaff/npnf206.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf206/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn06schauoft)

## NPNF2 7: NPNF2-07. Cyril of Jerusalem, Gregory Nazianzen

Status: partial. 502 of 515 source page groups aligned with independent scan OCR; 13 unresolved. Mean normalized token agreement among selected pages 95.62%. 481 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 502 / 515 pages; 305 passages. OCR agreement: 95.6%

[Text](https://www.ccel.org/ccel/s/schaff/npnf207.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf207/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn07schauoft)

## NPNF2 8: NPNF2-08. Basil: Letters and Select Works

Status: partial. 309 of 397 source page groups aligned with independent scan OCR; 88 unresolved. Mean normalized token agreement among selected pages 92.61%. 235 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 309 / 397 pages; 472 passages. OCR agreement: 92.6%

[Text](https://www.ccel.org/ccel/s/schaff/npnf208.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf208/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn08schauoft)

## NPNF2 9: NPNF2-09. Hilary of Poitiers, John of Damascus

Status: partial. 448 of 452 source page groups aligned with independent scan OCR; 4 unresolved. Mean normalized token agreement among selected pages 97.57%. 447 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 448 / 452 pages; 264 passages. OCR agreement: 97.6%

[Text](https://www.ccel.org/ccel/s/schaff/npnf209.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf209/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn09scha)

## NPNF2 10: NPNF2-10. Ambrose: Selected Works and Letters

Status: partial. 470 of 479 source page groups aligned with independent scan OCR; 9 unresolved. Mean normalized token agreement among selected pages 97.61%. 467 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 470 / 479 pages; 392 passages. OCR agreement: 97.6%

[Text](https://www.ccel.org/ccel/s/schaff/npnf210.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf210/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn10schauoft)

## NPNF2 11: NPNF-211. Sulpitius Severus, Vincent of Lerins, John Cassian

Status: partial. 575 of 590 source page groups aligned with independent scan OCR; 15 unresolved. Mean normalized token agreement among selected pages 98.33%. 570 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 575 / 590 pages; 1162 passages. OCR agreement: 98.3%

[Text](https://www.ccel.org/ccel/s/schaff/npnf211.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf211/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn11schauoft)

## NPNF2 12: NPNF-212. Leo the Great, Gregory the Great

Status: partial. 481 of 493 source page groups aligned with independent scan OCR; 12 unresolved. Mean normalized token agreement among selected pages 96.90%. 474 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 481 / 493 pages; 598 passages. OCR agreement: 96.9%

[Text](https://www.ccel.org/ccel/s/schaff/npnf212.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf212/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn12schauoft)

## NPNF2 13: NPNF-213. Gregory the Great (II), Ephraim Syrus, Aphrahat

Status: partial. 391 of 403 source page groups aligned with independent scan OCR; 12 unresolved. Mean normalized token agreement among selected pages 97.72%. 391 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 391 / 403 pages; 319 passages. OCR agreement: 97.7%

[Text](https://www.ccel.org/ccel/s/schaff/npnf213.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf213/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn13scha)

## NPNF2 14: NPNF2-14. The Seven Ecumenical Councils

Status: partial. 599 of 629 source page groups aligned with independent scan OCR; 30 unresolved. Mean normalized token agreement among selected pages 94.52%. 545 reach 90%. Source markers can differ from printed numbering. OCR agreement is not proof of exact transcription.

Coverage: 599 / 629 pages; 746 passages. OCR agreement: 94.5%

[Text](https://www.ccel.org/ccel/s/schaff/npnf214.xml)
[Source scan](https://www.ccel.org/ccel/schaff/npnf214/Page_Index.html)
[Independent OCR scan](https://archive.org/details/selectlibraryofn14schauoft)

## Sources and credits

Transcriptions and source structure come from [Christian Classics Ethereal Library](https://www.ccel.org/fathers.html). Printed scans and machine-readable scan text are linked from [Internet Archive](https://archive.org) and CCEL. Each volume above links to its source.

Transcription markers may differ from printed page numbers. Independent scan links use the archive’s recorded page labels; source scan links retain the original, unchecked alignment. Chapter citations identify the original source.