xlvi Address of Mr J. W. Clark, President, 



November 29, 1841. 



By Aug. De Morgan, M.A. (Trin.) : On the foundation of algebra. Trans. 



VII. 287—300. 

 By Jos. Power, M.A. (Trin. Hall) : On the late accident, on the Brighton 



railway. Trans, vn. 301 — 317. 

 By Joh. Fre. Stanford, B.A. (Chr.) : On a newly invented locomotive. 



December 13, 1841. 



By Will. Hopkins, M.A. (Pet.) : On the forms of the isothermal surfaces within 

 the earth ; and on the thickness of the earth's solid crust, supposing the 

 central portion to be fluid. 



By Aug. De Morgan, B.A. (Trin.) : On the foundation of algebra (continued). 



February 14, 1842. 



By Bob. Leslie Ellis, M.A. (Trin.) : On the foundations of the doctrine of 

 chances. Trans, viii. 1 — 6. 



February 28, 1842. 



By Bob. Leslie Ellis, M.A. (Trin.) : On the doctrine of chances (concluded). 

 Trans, viii. 1 — 6. 



March 14, 1842. 



By Mr Taplin : On the solution of a cubic equation. 



By Professor Whewell (Master of Trinity College) : Are cause and effect 

 simultaneous or successive? Trans, vn. 319 — 331. 



April 11, 1842. 



By Professor Challis : On the differential equations of fluid motion. Trans. 



vn. 371—396. 

 By Professor Owen : On the fossil remains of a new genus of Saurians called 



Rhynchosaurus, discovered in the New Bed Sandstone of Warwickshire. 



Trans, vn. 355—369. 



April 25, 1842. 



By Matth. O'Brien, M A. (Gonv. and Cai.) : On the propagation of luminous 

 waves in the interior of transparent bodies. Trans, vn. 397 — 437. 



By Geo. Gabriel Stokes, B.A. (Pemb.) : On the steady motion of incompressible 

 fluids. Trans, vn. 439 — 453. 



May 9, 1842. 



By Professor Kelland : On the motion of glaciers. 



By the same : On the laws of fluid motion. 



By Jos. Power, M.A. (Trin. Hall) : On fluid motion. Trans, vn. 455 — 464. 



By Professor Miller : An account of the Dioptrische Untersuchungen of Gauss. 



November 14, 1842. 



By Professor Fisher : On the development of the spinal ganglia in animals, 

 and on the malformation of various portions of the nervous system 

 in Man. Phil. Mag. 1842, ii. 485. 



November 28, 1842. 



By Matth. O'Brien, M.A. (Gonv. and Cai.) : On the intensity of reflected and 

 refracted light, the absorption of light, and the stability of the luminous 

 eether. Trans, viii. 7 — 26, 



