on resigning office, 27 October, 1890. xlvii 



December 12, 1842. 

 By Will. Hopkins, M.A. (Pet.) : On the glaciers of the Bernese Alps. 



February 20, 1843. 



By Art. Cayley, B.A. (Trin.) : On some properties of determinants. Trans. 



viii. 75—88. 

 By Matth. O'Brien, M.A. (Gonv. and Cai.) : On the absorption of light by 



transparent media. Trans, viii. 27 — 30. 



March 6, 1843. 



By Professor Challis : On a new general equation in Hydro-dynamics. 

 Tram. viii. 31—43. 



By Geo. Kemp, M.B. (Pet.) : On the nature of the biliary secretion : to shew- 

 that the bile is essentially composed of an electro-negative body, in 

 chemical combination with one or more inorganic bases. Trans, viii. 

 44—49. 



March 20, 1843. 



By Professor Sedgwick : On Professor Owen's memoir on the skeleton of the 

 Mylodon ; and on the structure and habits of certain extinct genera of 

 gigantic Sloths. 



May 1, 1843. 



By Professor Challis : On the comet of 1843. 



By Will. Williamson, M.A. (Cla.) : Two letters on the same subject. 

 By Will. Hopkins, M.A. (Pet.) : On the motion of glaciers. Trans, viii. 

 50—74. 



May 15, 1843. 



By Hamnett Holditch, M.A. (Gonv. and Cai.) : On small finite oscillations. 



Trans, viii. 89—104. 

 By Professor Willis : On the vaults of the Middle Ages. 



May 29, 1843. 



By Geo. Kemp, M.B. (Pet.) : On the relation between organic and organized 

 bodies ; with some remarks on the theory of organic combinations as 

 proposed by Laurent. 



By Geo. Gabriel Stokes, B.A. (Pemb.) : On some cases of fluid motion. 

 Trans, viii. 105—137. 



October 30, 1843. 



By Will. Hopkins, M.A. (Pet.) : An account of the large reflecting telescope 

 which the Earl of Bosse is now constructing ; with an account of the 

 manner in which its 6 feet speculum has been prepared. 



November 13, 1843. 



By Professor Sedgwick : An account of the structure and relations of the 

 slate rocks of North Wales. 



Between 1831 and 1843 the Proceedings of the Society were reported — 

 somewhat irregularly — in the Philosophical Magazine. The notices, as a 

 general rule, are extremely brief ; but I have thought it worth while to add 

 references to those papers that are not printed in the Society's Transactions 



