on resigning office, 27 October, 1890. xxxv 



By Sam. Earnshaw, B.A. (Joh.) : On the integration of the general linear 

 differential equation of the nth. order, and the general equation of 

 differences with constant coefficients. 



After the meeting Professor Whewell gave an account of the theories of 

 evaporation, the use of Daniel's hygrometer, and the formation of clouds. 



December 12, 1831. 



By Professor Cumming : Exhibition of a calculus found in the intestines of a 



horse, with remarks. 

 By Professor Henslow : On a hybrid Digitalis (concluded). Trans, iv. 257 — 



278. 

 After the meeting Mr C. Jenyns gave an account, illustrated by drawings, of 



the rules of the perspective of shadows, and explained the use of the cen- 



trolinead. 



March 5, 1832. 



By Professor Airy : On a new analyser of light polarized in a peculiar manner. 



Trans, iv. 313—322. 

 By Rob. Murphy, B.A. (Gonv. and Cai.) : On an inverse calculus of definite 



integrals. {Trans, iv. 353 — 408.) 

 After the meeting Professor Airy exhibited an apparatus illustrative of some 



of the phenomena referred to in his paper. 

 Professor Henslow gave a lecture, illustrated by specimens and drawings, on 



the age of trees. 



March 19, 1832. 



By Professor Airy : On the phenomena of Newton's rings when formed 

 between two transparent substances of different refractive powers. Trans. 

 iv. 409—424. 



By Will. Brett, M.A. (Corp.) : On the phenomena of double stars. 



After the meeting Mr Whewell gave an account, illustrated by diagrams, of 

 the forms and course of the cotidal lines according to the causes which 

 influence them, and according to the observations made in different places. 



April 2, 1832. 



By J[ohn] P[rentice] Henslow : On the habits of two hybrid pheasants pre- 

 sented by him to the Society. 

 By B. Bushell : On the anatomy of the same birds. 

 By Will. Brett, M.A. (Corp.) : On the theory of stars of variable brightness. 



May 7, 1832. 

 By Sir Joh. Ere. Will. Herschel, M.A. (Joh.) : Description of a machine for 



solving equations. Trans, iv. 425 — 440. 

 By Will. Holt Yates, M.B. (Joh.) : Account of the magnetic mountain of 



Sipylus near Magnesia. 

 After the meeting Professor Sedgwick gave an account, illustrated by maps 



and sections, of the Physical Geography and History of the Fens of 



Cambridgeshire. 



May 21, 1832. 



By Sir Joh. Fre. Will. Herschel, M.A. (Joh.) : Description of a machine, etc. 



(concluded). 

 By Rob. Willis, M.A. (Gonv. and Cai.) : On the ventricles of the larynx. 

 By Professor Henslow : On a monstrosity of Reseda. Trans, v. 95 — 100. 

 After the meeting Mr Willis gave a lecture, illustrated by experiments, on 



various phenomena of sound. 



c2 



