402 Index to Transactions I — XII. 



Challis, Prof., On the Differential Equations applicable to the Motion of 

 Fluids: Apr. 11, 1842; vii. 371—396. 



On a new Equation in Hydrodynamics : March 6, 1843 ; viil. 31 — 



43. 



■ On the Theory of Luminoiis Eays on the hypothesis of Undulations : 



May 11, 1846; viii. 363—370. 



On the Theory of the Polarization of Light, on the same hypothesis : May 



25, 1846; viii. 371—378. 



On the Transmission of Light, and on Double Refraction ; on the same 



hypothesis: May 17, 1847; viii. 524—532. 



On the Mathematical Theory of Luminous Vibrations : March 6, 1848 ; 



VIII. 584—594. 



On the Aurora Borealis of Nov. 17, 1848 : Nov. 27, 1848 ; viii. 621—632. 



On the Determination of the Longitude of Cambridge Observatory by 



Galvanic Signals: May 15, 1854; ix. 487—514. 

 Christie, S. H., On the Laws by which Masses of Iron affect Magnetic Needles : 



May 15, 1820 ; i. 147—173. 

 Clark, Prof. W., On a case of Hmnan Monstrosity: May 16, 1831; iv. 



219—255. 

 Clarke, Prof. E. D., Inaugural address at the first general meeting of the 



Society: Dec. 13, 1816; i. (1—7). 



On the Purple Precipitate of Cassius: May 15, 1820; i. 53—61. 



On a deposit of Natron in the tower of a Church: Nov. 27, 1820; 



L 193—201. 



On the CrystaUization of Water, &c. : March 5, 1821 ; i. 209—215. 



Clifton, R. B., Note on Prof. De Morgan's Memoir on the history of Signs 



+ and - : Feb. 13, 1865 ; xl 213—218. 

 CoDDiNGTON, Rev. H., On the improvement of the Microscope : March 22, 1830 ; 



HI. 421—428. 

 Cox, HoMERSHAM, On Impact on Elastic Beams: Dec. 10, 1849; ix. 73 — 78. 



On the Deflection of Imperfectly Elastic Beams, and on the Hyperbolic 



Law of Elasticity : March 11, 1850; ix. pt. ii. 177—190. 

 Gumming, Prof., On the connexion of Galvanism and Magnetism : Apr. 2, 

 1821 ; 1. 269—279. 



On Magnetism as a Measure of Electricity : May 21, 1821 ; i. 281—286. 



On a large Human Calculus in the Library of Trinity College : Nov. 26, 



1821 ; I. 347—349. 



On the development of Electro-Magnetism by Heat: Apr. 28, 1823; 



n. 47—76. 



See Alderson, J. 



De Morgan, Prof., On the general Equation of Curves of the Second Degree: 

 Nov. 15, 1830 ; iv. 71—78. 



On the General Equation of Surfaces of the Second Degree : Nov. 12, 



1832; V. 77—94. 



■ On Discontinuous Constants, as applied to Infinite Series : May 16, 1836; 



VI. 185—193. 



