CONTENTS. 



ART. 



XIII. Experimental Researches on the Lifting Power of the Electro-Magnet. 



Part I. By the Rev. T. R. Robinson, D. D., Member of the 

 Royal Irish Academy., and of other Scientific Societies. Read 

 June 14, 1852 291 



XIV. Report on the Chemical E.xamination of Antiquities from the Mu- 



seum of the Royal Irish Academy. By J. W. Mallet, A. B., 



Ph. D. Presented April 11, 1853 313 



XV. On the Properties of Inextensible Surfaces. By the Rev. John 

 H. Jellett, Fellow of Trinity College, and Professor of Natural 

 Philosophy in the University of Dublin. Read May 23, 1853. 343 

 XVI. On the Attraction of Ellipsoids, ivith a new Demonstration of 

 Clair auts Theorem ; bting an Account of the late Professor 

 Mac Cdllagh's Lectures on those Subjects. Compiled by George 

 Johnston Allman, LL. D., of Trinity College, Dublin. Read 



June 13, 1853 379 



XVII. Notice of the British Earthquake of November 9, 1852. By Robert 



Mallet, C.E.,3L R.I A. Read February 13, 1854. . . . 397 

 XVIII. Notes on the Meteorology of Ireland, deduced from the Observations 

 7)iade in the Year 1851, tmder the Direction of the Royal Irish 

 Academy. By the Rev. Humphrey Llotd, D.D.., F.R.S. ; Hon. 

 F.R.S.E.; V.P.R.I.A.; Corresponding Member of the Royal 

 Society of Sciences at Gottingen; Honorary Member of the Ame- 

 rican Philosophical Society, of the Batavian Society of Sciences, 

 and of the Societc de Physique ei d'Histoire Naturelle of Geneva, 

 dfc.^c. Read June 27 and December 12, 1853 411 



vol. XXII. * 



