Vi CONTENTS. 



PAGE. 



A Sealed Packet, deposited with the Academy by Robert Mallet, 

 Esq., opened at his request 98 



A Note from Edward Clibborn, Esq., on Gold Ornaments lately 

 found near Naas 99 



On ancient Wax Tablets, presented to the Academy by the Rev. J. 

 Spencer Knox. By Rev. J. H. Todd, D. D 99 



On the Quantity of Rain which fell at Toomavara during five 

 Years since 1827. By Rev. Thomas Knox 100 



Description of a remarkable Lunar Halo and Parasalene seen in the 

 Queen's County. By E. W. Chetwoode, Esq., and others. . . 103 



Notice of a New Electric Clock. By Richard Sharpe, Esq. . . . 105 



On an ancient Inscription on a Tombstone. By George Petrie, 

 Esq 108 



Suggestions relating to the Improvement in working Atmospheric 

 Railways. By R. Mallet, Esq 108 



On two Methods of solving Biquadratic Equations. By the Rev. 



Charles Graves Ill 



On the Crotal. By Robert Ball, Esq 135 



Notice of an Ogham Stone found in the County of Wexford. . . 136 



On the Zodiacal Light. By E. J. Cooper, Esq 138 



On the Storm of the 6th of July, 1845, By William Hogan, Esq. 140 



Account of recent Excavations in the Round Towers of Clonmac- 

 noise. By Colonel Harry D. Jones, R. E 144 



Account of Rubbings exhibited from a Rock at Drumlish. By 

 Colonel Harry D. Jones, R. E. . . . , 147 



On Algebraic Curves and Surfaces. By Charles Graves. . . . 151 



On the Authorship of the Poem entitled the " Exile of Erin." By 

 the Rev. W. H. Drummond, D. D 157 



Memoir of the Dublin Philosophical Society of 1683. By W. R. 

 Wilde, Esq 160 



On Phonetic Hieroglyphics. By the Rev. Dr. Hincks. . . 1773 189 



On an ancient Way-side Cross. By J. Huband Smith, Esq. ... 180 



On Discontinuous Functions. By George Boole, Esq., of Lincoln. 182 



Dr. Allman announced the addition of Diotis Maritima to the Irish 

 Fauna 184 



On the Mechanics of Earthquakes. By Robert Mallet, Esq. ,186,192 

 Observations on abnormal Movements of the Magnets in the Dublin 

 Observatory. By the Rev. H. Lloyd, D. D., President. ... 192 



Address to the Academy of Sir W. R. Hamilton, on retiring from 

 the Presidency 199 



Inaugural Address of the Rev. H. Lloyd, D. D., on his Election to 

 the Presidency of the Academy 203 



On a certain Definite Multiple Integral. By George Boole, Esq., 

 of Lincoln 217 



