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Fry (M. W. J.) : The Centre of Gravity and the Principal Axes of any 

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 Heterogeneous Solid composed of nearly Spherical Shells of equal 

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

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Graves (Rt. Rev. Dr.): Focal Circles of Spherical Conies. 1889. 



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 JOLY (C. J.): Theory of Linear Vector Functions. 1895. pp.51. 4to. 



IS. 6a. 

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 JOLY (C. J.) : Scalar Invariants of two Linear Vector Functions. 1896. 



pp. 20. 4to. IS 

 JOLYiC. J.): Associative Algebra applicable to Hyperspace. 1898. 



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 JOLY (C.J.J: Quaternion Arrays. 1902. pp.14. 410. is. 

 JOLY (C. J.): Interpretation of a Quaternion as a Point Symbol. 1902. 



pp. 16. 4to. IS. 

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 JOLY (C. J.) : Geometry of a Three-System of Screws. 1903. pp. 32. 



4to. IS. 

 JOLY (C.J.) : The Quadratic Screw- System. 1903. pp.84. 4to. 2s. gd. 



Macfaklane (A.) : Differentiation in the Quaternion Analysis. 1901. 



pp 17. 8vo. 2s. 6d. 

 Orr (W. M'F.) : The Stability or Instability of the Steady Motions 



of a Perfect Liquid and of a Viscous Liquid. Part I.: A Perfect 



Liquid. 1907. pp. 60. 8vo. is. 6d. 

 Orr (\V. M'F.): The Stability or Instability of the Steady Motions 



of a Perfect Liquid and of a Viscous Liquid. Part II.: A Viscous 



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 Orr (W. M'F.): Extensions of Fourier's and the Bessel-Fourier 



Theorems. 1909. pp. 44. 8vo. is. 6d. 

 Preston (T.) : Motion of a Particle, and the Equilibrium of Flexible 



Strings on a Spherical Surface. 1889. pp.24. 4to. is. 



PVR-SER (F.) : Application of Bessel's Functions to the Elastic Equili- 

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Purser (F.): On Ether Stress, Gravitational and Electrostatical. 

 1909. pp. II. 8%-o. 6d. 



RoBEKT.-> (R. A.): Properties of certain Plane Curves. 1886. pp. 15- 

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Roberts (W. R. W.) : Periods of the First Class of Hyper-elliptic 

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Rogers (R. A. P.): The Logical Basis of Mathematics. 1908. 

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Tarlftox (F. a.): Deductions from M'Cullagh's Lectures on Rotation. 

 1882. pp. 12. 4to. IS. 



Tarlkton (F. a.): Mathematical Investigation of the Free Period of 

 the Rocker. (In Alexander and Thomson on Elliptographs.) 1892 

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Tarleton (F. A.) : The Relation of Mathematics to Physical Science. 

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Williamson (B.) : Curvilinear Coordinates. 1891. pp. 38. 4to. is. 6d. 



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