[Irish extract and a Latin phrase, probably in John O'Donovan's hand.]

[Irish extract in John O'Donovan's hand, referring to Columkille.]

[Letter from Sylvester Malone (Kilkee) to James Henthorn Todd (Trinity College Dublin), concerning Todd's translation of the Book of Leinster and the possible translation of other manuscripts, including the Book of Iniscathaig (sic), the Gospels of Roscrea and the Annals of Nenagh.]

[Letter from W. Oldham to John O'Donovan, concerning the inscription on a brooch; includes O'Donovan's response.]

[Letter from Whitley Stokes (Lincoln’s Inn) to James Henthorn Todd, concerning Todd’s "Cogadh Gaedhel re Gallaibh" and the editorial conventions he adopts.]

[Letter from William Reeves ([Parsonage], Ballymena, Co. Antrim) to John O'Donovan, providing a new transcription of the Belfast bell inscription; includes O'Donovan's response.]

[Letter from John O'Donovan to William Reeves, discussing the problematic printing of the Annals.]

[Letters from John O'Donovan, Dublin to William Reeves (Diocesan School, Ballymena, Co. Antrim), discussing his and O'Curry's transcription of the Brehon Laws.]

[Letter from John O'Donovan (Oxford) to James Henthorn Todd, discussing the Life of St. Columkille manuscript in the Bodleian Library.]

[Letter from John O'Donovan (36 Buckingham Street, Dublin) to William Reeves, concerning a request from Robert MacAdam, and discussing Reeves's work on Life of Patrick.]

[Letter from John O'Donovan (36 Buckingham Street, Dublin) to William Reeves, discussing different Irish manuscripts.]

[Letter from John O'Donovan (36 Buckingham Street, Dublin) to William Reeves, discussing some copy-editing matters, and pointing out the forgeries of Shane O'Dugan's time.]

[Letter from J. Donnavanides [John O'Donovan] (36 Buckingham Street, Dublin) to William Reeves, concerning the young linguist Whitley Stokes.]