ROYAL IRISH ACADEMY 



PROCEEDINGS. 



SECTION A. 



[Mathematical, Astronomical, and Physical Science.] 



Vol. XXVII. 



No. 1. A Theorem on Moving Distributions of Electricity. 



A. W. Conway, f.r.s. 6d. 



,, 2. The Stability or Instability of the Steady Motions of a Liquid. Part I : A 

 Perfect Liquid. 



W. M'F. Orr, F,R.S. is. 6d. 



,, 3. The Stability or Instability of the Steady Motions of a Liquid. Part II: A 

 Viscous Liquid. 



W. M'F. Orr, F.r.s. «s. 



,, 4. The Centre of Gravity and the Principal Axes of any Surface of' 

 equal Pressure in a Heterogeneous Liquid covering a Hetero- 

 geneous Solid composed of nearly Spherical Shells of equal 

 Density, when the whole Mass is rotating with a small Angular 

 Velocity in Relative Equilibrium under its own Attraction. 

 M. W. J. Fry, m.a. 



5. On the Properties of a System of Ternary Quadrics which yield 

 Operators which annihilate a Ternary Cubic. 



H. G. Dawson, m.a. 



6. A New Method of Solving Legendre's and Bessel's Equations, and 

 others of a similar type. 



J. R. Cotter, m.a. 



7. The Relation of Mathematics to Physical Science. 

 F. A. Tarleton, ll.d. 6d. 



8. The Dynamics of a Rigid Electron. 

 A. W. Conway, f.r.s. 6d. 



9. The Logical Basis of Mathematics. 

 R. A. P. Rogers, m.a. 6d. 



10. On Ether Stress, Gravitational and Electrostatical. 



F. Purser, m.a. 6d. 



11. Extensions of Fourier's and the Bessel-Fourier Theorems. 



W. M'F. Orr, f.r.s. 



12. Some Theorems on the Twisted Cubic. 



M. J. Conran, m.a. 



IS. 6d. 



6d. 



Vol. XXVIII. 



1. On the Motion of an Electrified Sphere. 



A. W. Conway, f.r.s. 



2. Contributions to the Theory of Screws. 



Sir Robert Ball, f.r.s. 



3. The Symbolical Expression of Eliminants. 



Rev. W. R. W. Roberts, d.d. 



6d. 



28. 



6d. 



Vol. XXIX. 



1. On the AppHcation of Quaternions to some recent Developments of Electrical 



Theory. 



A. W. Conway, f.r.s. 6d. 



2. Extensions of Fourier's and the Bessel-Fourier Theorems. Second Paper. 



W. M'F. Orr, f.r.s. 6d. 



3. The Linear Complex, and a Certain Class of Twisted Curves. 



Rev. M. F. Egan, m.a. is. 



4. The Differentiation of Quaternion Functions. 



K. T. Wang. 6d. 



5. The Electric Charge on Rain (Part I). 



J. A. McClelland, d.sc, f.r.s., and J. J. Nolan, m.sc. od. 



6. Some Differential Properties of the Orthogonal Trajectories of a Congruence 



of Curves, with an Application to Curl and Divergence of Vectors. 



R. A. P. Rogers, m.a. "d. 



