on resigning office, 27 October, 1890. xxxix 



December 8, 1834. 



By Professor Miller : On the position of the optical axes of crystals. Trans, v. 

 431—438. 



By Professor Henslow : On the Green Sand at Haslingfield, Barton, etc. 



By the same : On the age of trees, as determined by their size. 



By Professor Airy : On the echo from the open end of a tall chimney. 



[By Professor Cumming : A statement of Melloni's discoveries on the trans- 

 mission of heat by radiation.] 



March 2, 1835. 



By Rob. Murphy, M.A. (Gonv. and Cai.) : On the inverse method of Definite 



Integrals. Trans, v. 315—393. 

 By Ri. Stevenson, B.A. (Trin.) : On the solution of some problems connected 



with the theory of straight lines and planes by a new symmetrical method 



of coordinates. 

 By Will. Hopkins, M.A. (Pet.) : On Physical Geology. Trans, vi. 1— 84. 



March 16, 1835. 



By Will. Webster Fisher, M.B. (Down.) : On the nature, structure, and changes, 

 of tubercles, illustrated by coloured drawings. Phil. Mag. 1835, i. 395. 



After the meeting Mr Willis gave an account, illustrated by drawings and 

 models, of the progress of Gothic Architecture, and especially of the 

 formation of tracery. Ibid. 



March 30, 1835. 



By Aug. de Morgan, B.A. (Trin.) : On the theorem of M. Abel relative to the 

 algebraical expression of the roots of equations which are connected by 

 the law of periodic functions. 



By Will. Whewell, M.A. (Trin.) : Exhibition and explanation of an Anemome- 

 ter of a new construction ; with a statement of the use which might be 

 made of observations made by means of it. 



May 4, 1835. 



By Professor Airy : An account of results recently obtained at the Observatory 



with respect to : (1) the obliquity of the ecliptic ; (2) the mass of Jupiter ; 



(3) Jupiter's time of rotation. 

 By Will. Whewell, M.A. (Trin.) : On the results of the Tidal Observations of 



the Coast Guard of June, 1834 ; and on those intended to be made in June, 



1835. 



May 18, 1835. 



By Archib. Smith (Trin.): A communication containing the eliminations by 

 which the equation of the wave surface in Fresnel's theory of undulations 

 is determined in a manner more simple than in previous investigations 

 of other authors on the same subject (read by Professor Airy). Trans. 

 vi. 85—89. 



By Will. Whewell, M.A. (Trin.) : An extract of a letter from Professor Schu- 

 macher, stating that Messrs Beer and Modler had found the time of 

 Jupiter's rotation to be 9 h 55 m 26 s , 5; and that M. Bessul had made a 

 long series of observations which give the mass of Jupiter nearly identical 

 with those of Professor Airy. 



By Will. Webster Fisher, M.B. (Down.) : On tubercles (continued). 



June 1, 1835. 



By Rob. Willis, M.A. (Gonv. and Cai.) : An account, illustrated by models, of 

 the progress of decorative construction in vaults. Phil. Mag. 1835, i. 71. 



