Peritia: journal of the Medieval Academy of Ireland 13 (1999)
Ó Corráin (Donnchadh): Ad Annals of the Four Masters, 823-824.
In Peritia 13 (1999), p. 141.
AFM ad annum 822.1 [=824].

Cahill (Michael): The Turin glosses on Mark: towards a cultural profile of the glossator.
In Peritia 13 (1999), pp. 173–193.
Studies the contents of the Turin losses with the aim of revealing the identity and cultural profile of the Glossator, and suggests that the glossing took place in Auxerre in the latter half of the ninth century.

Hillers (Barbara): Ulysses and the judge of truth: sources and meanings in the Irish Odyssey.
In Peritia 13 (1999), pp. 194–223.
Discusses the classical background and folklore elements of the tale as well as its Irish sources, and offers a profile of the anonymous author.

Borsje (Jacqueline): Omens, ordeals and oracles: on demons and weapons in early Irish texts.
In Peritia 13 (1999), pp. 224–248.
Discusses the sword ritual described in Serglige Con Culainn §2.15-17, and argues that the background for the demons mentioned in this and other texts in connection with the delivery of an oracular message about fights in the past is to be found in the Irish war goddesses (particularly the Morrígan).

Dunn (Marilyn): Tánaise ríg: the earliest evidence.
In Peritia 13 (1999), pp. 249–254.
Argues that Regula magistri was compiled at the Columbanian foundation of Bobbio, and that the term secundarius used in this text for ‘designated successor’ is an early alllusion to the Irish tánaise ríg.

MacDonald (Aidan): Reiclés in the Irish annals to ad 1200.
In Peritia 13 (1999), pp. 259–275.
Argues for a meaning ‘reliquary’ in annalistic texts. In Appendix: The individual annalistic entries.

Ó Muirigh (Caoimhín): Táilcentech ‘the monastery of Armagh’?
In Peritia 13 (1999), pp. 309–310.

Ó Corráin (Donnchadh): Vikings IV: Is Sceillec Old Norse?
In Peritia 13 (1999), pp. 310–311.
vs M. Oftedal's explanation (in Viking congress 7, pp. 125-133) as a Norse borrowing.