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

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 Velocity in Reladve Equilibrium under its own Attraction. 1907 

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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 



JOLY (C. J.) : Vector E.xpressions for Curves. 1896. pp.25. 8vo. 2S 

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



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 JOLY (C. J.): Associative Algebra applicable to Hj-perspace. 1898, 



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

 OLY (C. J.) : Interpretation of a Quaternion as a Point SjTnbol. 1902 

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 JoLY (C. J.): Representation of Screws by Weighted Points. 1902 



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



Strings on a Spherical Surface. 1889. pp. 24. 410. is. 

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IS. 6d. 

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



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Roberts (R. A.): Properties of certain Plane Curves. 1886. pp. 15. 



4to. IS. 

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



Integrals. 1881. pp. 16. 4to. is. 

 Roberts (W, R. W.): The Symbolical Expression of Eliminants. 



1910. pp. 7. 8vo. 6d- 



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



pp. 12. 8to. 6d. 

 Tarletox (F. A): Deductions from M'Cullagfa's Lectures on Rotation. 



1882. pp. 12. 4to. IS. 

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



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



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