1824.] Proceedings of Philosophical Societies. 147 



Henry Foster, with an Invariable Pendulum ; in London ; at the 

 Galapagos Islands in the Pacific Ocean, near the Equator; at 

 San Blasde California on the NW Coast of Mexico ; and at Rio 

 de Janeiro in Brazil. With an Appendix, containing the Second 

 Series of Experiments in London, on the Return. 



" Abstract of the most exact Results at each Station." 



Stations. 



[Diminution of Gravity 

 from Pole to Equator. 



Galapagos 0°32' 0"N 

 San Bias.. 21 30 25 N 

 Rio 22 55 22 S 



Ellipticity. 



•0051412 

 •0054611 

 •0053431 



!8 4'?8 



_ 1 _ 

 3 1 5" 5 o 



1 



." o e ■ .j 7 



Length of Equat. 

 Pend. 



39-017196 



39-00904 



39-01206 



{To be continued.) 



Article XX. 



Proceedings of Philosophical Societies. 



ROYAL SOCIETY. 



Dec. 1 {continued). — When the President had concluded his 

 address to the Astronomer Royal, the Society proceeded to the 

 election of a Council and Officers ; and the following were de- 

 clared duly elected: — 



Of the Old Council.— The Right Hon. Sir H. Davy, Bart.; 

 Samuel Goodenough, Lord Bishop of Carlisle ; W. T. Brande, 

 Esq. ; Taylor Combe, Esq. ; J. W. Croker, Esq. ; Davies 

 Gilbert, Esq. ; Charles Hatchett, Esq. ; Sir Everard Home, 

 Bart. ; John Pond, Esq. ; W. H. Wollaston, MD. ; Thomas 

 Young, MD. For. Sec. 



Of the New Council. — Bernard Edward, Duke of Norfolk ; Sir 

 James Mac Gregor, Bart. ; William Allen, Esq. ; Major Thomas 

 Colby ; James Ivory, Esq. ; William Marsden, Esq. ; W. G. 

 Maton, MD.; Edward Rudge, Esq.; William Sotheby, Esq.; 

 Henry Warburton, Esq. 



President.— The Right Hon. Sir H. Davy, Bart. 



Treasurer. — Davies Gilbert, Esq. 



Secretaries. — W. T. Brande, Esq. and Taylor Combe, Esq. 



Dec. 11. — John Bayley, Esq. and George Townley, Esq. 

 were admitted Fellows of the Society; and MM. Fourier and 

 Vauquelin were elected Foreign Members. 



A paper was communicated, " On the Nature of the Acid and 

 Saline Matters usually existing in the Stomachs of Animals ;" by 

 William Prout, MD.FRS. 



The object of this paper was to prove, that the acid usually 

 found to exist in the stomach of animals during the digestive 



l2 



