On the date of the manuscript commonly called the Book of Armagh.

Míreanna comhchosúla

• On the lignum contensionis, (a controversial passage in the Book of Armagh).
  de réir: Graves, Charles
  Foilsithe / Cruthaithe: (1893)
• Some notices of the Acts of St. Patrick, contained in the Book of Armagh.
  de réir: Graves, Charles
  Foilsithe / Cruthaithe: (1861)
• Two methods of solving biquadratic equations.
  de réir: Graves, Charles
  Foilsithe / Cruthaithe: (1845)
• On the solution of linear differential equations, and other equations of the same type, by the separation of symbols.
  de réir: Graves, Charles
  Foilsithe / Cruthaithe: (1845)
• On the theory of linear differential equations.
  de réir: Graves, Charles
  Foilsithe / Cruthaithe: (1847)