334 Royal Irish Academy. 



LIST OF PAPERS BY DR. GRAVES. 



Transactions. 



1860. " On a previously Undescribed Class of Monuments" (Circular Markings). 



1878. " On an Ogham Inscription " (found in the parish of Minard, Co. Kerry). 



,, "On the Croix Gammee or Swastika." 



1887. " On the Ogam Monument at Kilcolman. " 



1889. " On the Focal Circles of Spherical Conies." 



1892. " On an Ogam Inscription supposed to bear an Anglo-Saxon N'ame." 



Proceedings. 

 In Science. 



1841. " On certain general Properties of Cones of Second Degree." 

 ,, " The Application of Analysis to Spherical Geometry." 



1842. " On the motion of a Point upon the Surface of a Sphere." 



1844. " On the Algebraic Geometry of Curves traced upon given Surfac s." 

 1844-5. " On Algebraic Triplets. 



1845. " On two methods of solving Biquadratic Equations." 



1846. " On Algebraic Cui-ves and Surfaces." 



,, "On the motion of a Point in a Spherical Conic." 

 ,, " On Distributive Signs of Operation in Algebra.'' 



1847. " Observations on a Note of Professor MacCullagh." 



,, " On the Development of a Function in Factorials of the variable on which 



it depends." 

 ,, "On the Solution of Linear Differential Equations." 



1848. " On the Theory of Linear Differential Equations." 



,, " On Mathematical Expressions for Hypothetical and Disjunctive Proposi- 

 tions." 

 " On Equation of Central Surface of Second Order." 

 ".¥49. " On Geodetic Lines of Surfaces of the Second Order." 

 ,, " Theorems of the principal Circular Sections of a Central Surface of Second 



Order, and Sphere Conies traced upon it." 

 ,. "A General Theorem in the Calculus of Quaternions." 



1851. " Elementary Geometrical Proof of Joachimsthal's Theorem." 



,, " On a Formula containing a Symbol -which denotes Rotation through a 

 given Angle, and round a given Axis by means of Rectangular Coordi- 

 nates and Differential Coefficients." 



1852. " On a Generalization of the Symbolic Statement of Taylor's Theorem." 



1853. " Theorem as to Total Curvature of Bounded Portions of Surfaces." 

 ,, "On the Solution of Linear Differential Equations." 



1854. " On Interchange of Symbols in certain Symbolic Equations." 



