ROYAL IRISH ACADEMY 



SOME EECENT PUBLICATIONS 



niATIIKITIATIt'S. 



Alexander (T.) and A. VV. Thomson : Two-nosed Catenaries, and 

 their application to Se.<,'nicntal Arches. 1888. pp. 56. i plate. 

 4to. 3s. 



Ale.xander (T.) and A. W. Thomson : Elliptographs, and a 

 Mechanical Rocker for Detecting Oscillations. 1897. pp.40. 4to. 

 28. 6d. 



Ball (Sir R. S.) : Dynamics of a Rigid System moving in Elliptic 

 Space. 188 1, pp. 26. 4to. is. 



Ball (Sir R. S.) :. P.^tension of the Theory of Screws to the Dynamics 

 of any Material System. i88i. pp.38. 4to. is. 6d. 



Ball (Sir R. S.) : Plane Sections of the Cylindroid. 1887. pp. 31. 

 2 plates. 4to. 3s. 



Ball (Sir R. S.) : Dynamics and Modern Geometry — A New Chapter 

 in the Theory of Screws. 1887. pp.44. 4to. 2S. 



Ball (Sir R. S.) : Eighth Memoir on the Theory of Screws, showing 

 how Plane Geometry illustrates General Problems in the Dynamics 

 of a Rigid Body with Three Degrees of Freedom 1889. pp.58. 

 I plate. 4to. IS. 6d. 



Ball (Sir R. S.) ; Theory of the Content. 1889. pp.60. 4to. 2s. 6d. 



Ball (Sir R. S.) : Theory of Permanent Screws. 1891. pp.40. 4to. 

 IS. 6d. 



Ball (Sir R. S.) : Theory of Pitch Invariants and Theory of Chiastic 



Homography. 1894. pp. 28. 4to. is. 6d. 

 Ball (Sir R. S.): Further Developments of the Relations between 



Impulsive Screws and Instantaneous Screws. 1897. pp. 46. 4to. 



2S. 



Ball (Sir R. S.) : Twelfth and Concluding Memoir on tlie Theory of 



Screws. 1898. pp. 52. 4to. 2s. 

 Ball (Sir R. S.) : Further Developments of the Geometrical Theory of 



Six Screws. 1901. pp. 68. 4to. 2s. 

 Ball (Sir R. S.) : Reflection of Screw Systems and allied questions 



1903. pp. 54. 4to. IS. gd. 

 Ball (Sir R. S.): Some E.xtensions of the Theory of Screws. 1904. 



pp. 67. 4to. 2S. 

 Casey (J.): Cubic Transformations. 1880. pp.140. 4to. 2s. 6d. 

 Conran (M. J.) : Some Theorems on the Twisted Cubic. 1909. pp. 13. 



8vo. 6d. 



Conway (A. W.) : A Theorem on Moving Distributions of Electricity. 

 1907. pp. 8. 8vo. 6d. 



Conway (A. W.): The Dynamics of a Rigid Electron. 1908. pp. 13. 



8vo. 6d. 

 Conway, (A. W.): On the Motion of an Electrified Sphere. 1910. 



pp. 15. 8vo. 6d. 

 Culverwell (E. p.) : Maximum and Minimum Solutions in the 



Calculus of Variations when certain Fluxions of the Variables have 



finite and arbitrary Variations. 1899. pp. 15. Svo. 3s. 6d. 

 Cotter ( J. R.) : A New Method of Solving Legendre's and Bessel's 



Equations, and others of a similar type. 1907. pp.5. 8vo. is. 



Dawson (H. G.) : On the Properties of a System of Ternary Quadrics 

 which yield Operators which annihilate a Ternary Cubic. 1907. 

 pp. 12. 8vo. IS 



Eraser (J.) : Reduction of a Quartic Surface possessing a Nodal 

 Conic to a Canonical Form. 1004. pp. 14. Svo. 6d. 



