300 Proceedings of the Royal Society. 



The following were chosen Members of the Council, out of 

 the Society. 



William Allen, Esq. 



Major Thomas Colby. 



James Ivory, Esq. 



Sir James Mac Grigor, Knt. 



William Marsden, Esq. 



William George Maton, M.D. 



Bernard Edward, Duke of Norfolk. 



Edward Rudge, Esq. 



William Solheby, Esq. 



Henry Warburton, Esq. 



Officers for the ensuing Year. 

 President. — Sir II. Davy, Bart. 

 Treasurer. — Davies Gilbert, Esq. 

 Secretaries. — William Thomas Brande, Esq. 

 Taylor Combe, Esj. 

 Thursday, December 11. — A paper was communicated " on the 

 Nature of the Acid and Saline matters usually existing in the 

 Stomachs of Animals, by W. Prout, M.D." The object of this 

 paper is to prove, that the free acid, which exists in the stomach, 

 and which frequently is thrown up in cases of indigestion, is the 

 muriatic acid. 



M. Fourier and M. Vauquelin, of the Royal Academy of Sciences 

 at Paris, were elected Foreign Members of the Royal Society. 



Thursday, December 18. A paper was communicated by the 

 Rev. B. Powell, entitled " an Experimental Inquiry respecting the 

 supposed invisible heating effect beyond the red end of the pris- 

 matical spectrum." 



A paper was read " on the North Polar distances of the prin- 

 cipal Fixed Stars," by J. Brinkley, D.D., F.R.S. 



A paper was also communicated by James Ivory, Esq., F.R.S. , 

 " On the figure requisite to maintain the equilibrium of a homo- 

 geneous fluid mass that revolves upon an axis." 



The Society adjourned over the Christmas Vacation, to meet 

 again on Thursday, Jan. 8, 



