Kane— 7^7/6 Black Pig's Dyke. 315 



that my conjecture was well founded. The gratifying discovery of its 

 terminal on the Atlantic seaboard encouraged me to attempt the further 

 task of unravelling the tangled clues afforded by various writers as to the 

 frontiers of the ancient Province of Meath. For, by ascertaining those of the 

 Province of Meath, those of Ulster would necessarily be defined up to its 

 junction with Connaught. Here, then, was the preliminary task. Keating 

 states that the adjusted frontier was as follows : — 



From Dublin to Abhain Eighe. The Eye water near Leixlip. 



To Cluain Connragh. Cloncurry near Enfield, Co. Kildare. 



To Ath-an-mhuillen Francaidh. The French Mills ford, Frankford, 



King's County. This locality is out of sequence. 

 To the Cumar of Cluain loraird. Not identifiable. 

 To Tochar Cairbre. — The Causeway of Carbre. Kildare. 

 To Crannagh of Geisill. The woody place of Geishill, King's County. 

 To Drumchuillinn. DrumcuUen. King's County. 

 To Biorrha. Birr. do. 



To Abhain Chara. The stony river. Abhain na Cathbhada, the river of 



ISTenagh (Ir. Topographical poems, O'Huidrin). Owencarra. 

 To the Shannon, northwards to L. Eee, all whose islands belong to 



Meath. 

 To L. Boderg. Part of the Shannon near Eoosky. 

 To Maothil. From the Shannon to Mohill, Co. Leitrim. 

 To Athlone. This seems quite out of its place. 



Thence to Sgairbh Uachterach. " The upper rough ford." Probably 



some part of Lough Oughter, or L. Gowna, which O'Donovan states 



also went by the name of L. Achter. 

 To Drumleathan. Drumlane near Belturbet. 



Till one reaches the Magh. Perhaps the race-course of Castle Sanderson. 

 To the Cumar of Cluain Eois. The confluence (of rivers) at Clones. 



In Norden's Map of Elizabethan age, " Cumbre fluvius." 

 To Lough-da-ean. The Lake of the two birds. Possibly Dartrey Lake 



in Co. Monaghan. 

 To Magh Cnobha. (Perhaps an error for Muic Snamh = Muckno> 



Castleblayney). To Duibhir. Neither identified. 

 To Linn-atha-an-dailP on Sliabh Fuad. The lake of the blind man's ford 



on Slieve Fuad, north of Castleblayney. Not identified. 



^ In the Tain Bo Cualiige we read : "They came thence over the Bernas ho Cfialnge" (Bemas 

 Uladh or Bernas bo Uladh), which is the "Gap of Ulster" or the " Fews pass," and spent the 

 night in Glen Dail Imda in Cflalnge." 



