Vil 
PaGE. 
On the Chemical Composition and Optical Properties of the Mica of the Dub- 
lin, Wicklow, and Carlow Granites. By the Rev. Samuel Haughton. 
On the Solution of the Equation of Laplace’s Functions. By Sir W. R. 
EfanuitonseilanDeumcevenh cit sOhd iis a tases se bis. ey bars 
On Ecliptic Catalogues. By Edward J. Cooper, Esq... . - . ws 
On certain Notes in the Ogham Character on the margin of an ancient MS. of 
Priscian. By the Rey. Charles Graves, D.D. . . . « «. . . 199, 
On Laplace’s Equation and the Calculus of Quaternions. By the Rev. Robert 
AU enICHie ene reese atime tis cc aG te eect a esi a og NEL Brn 
On the same. By the Rev. Charles Graves, D.D. . .... 2... 
On an Inscription in the Church of Galway. By the Rev. J. H. Todd, D.D. 
On the Inscription found on the base of the Cross which stands in the princi- 
pal street in Cong. By the Rev. J. H. Todd, D.D. . . . 
Address to the Earl of Carlisle, Lord Lieutenant of Ireland. . 
pammwer. to thayNddresss eit sili cilc paMite,) sepa ye onl UPON Le 
On the Granites of Leinster. By the Rev. Samuel Haughton. . . . . . 
On the same. By Richard Grifith,LL.D: . . .......44 
On the Molecular Formation of Crystals. By Robt. T. Forster, Esq. 
On the Precipitate formed in the eae of Alkaline Ee By 
John Aldridge, M.D. . . . si eee aioe SA eG a) tea 
On the subject of Dreams. By the Rev. jie Walls DeDro fe ant Os 
On the Ogham Inscriptions found on a Monument at Bressay, in Shetland. 
By the Rev. Charles CHESTER TOE IDE pitty ethane ee ia So i nD tes a RS 
On some Symbolical Extensions of Quaternions, and on a Theory of Associ- 
ative Quines, and on some Geometrical panne of his Theories. By 
Sir W. R. Hamilton, LL.D. . . . aan he fe oe be 
On a peculiar Organic Production forwarded ie W. H. Prey M. D., from 
Western Australia. By G.J. Allman, M.D. . . Shires wae 
On the Cover of the Gospels of St. Molaise. By George Petrie, LL. D. 5 
On the Revival of Jtalian Literature in the Fourteenth Century. By J. F. 
Weallers UT, Divi a Uist cae wl 2 ey (cae hemrinerceg jatties 
On the Bursting of Ordnance when firing Heated Shot. By Robt. Mallet, Esq. 
On certain Animals mentioned in the Assyrian erp a3 the Rev. 
Hdward Hincks, D. De .- 2. eh et wk ore 
On some new Geometrical Applications of Quaternions. By Sir W. R. Ha- 
MUtON ME Diemer ge Wakes re kc iouei nee) eae iusaee 
On the early Discovery and extensive Adoption of the Bissextile Intercalation. 
By the Rey. F. Nolan, LL.D, F.R.S. 2. . 2... 1 
On a Babylonian Tablet in the British Museum. e the Rey. Edward 
Hincks, D.D. . . satiate yao Tee 
On aremarkable ita wine sia on Lough Bisel e John Tews Esq, 
On Reciprocal Surfaces. By the Rev. George Salmon. . . : 
On the Barometric Measurement of Mountain a Rey By the Rey. J cep 
MCG AIDLALEAY, Ors > coh oS Mat RMM MS cot ee cece : 
On the Causes of certain Phenomena observed on Lough aie By Henry 
Hennessy, Esq. . . . . Birch sear 
On the Luminous Phenomena mown by the dieters of Ruhmkorff g In. 
duction Apparatus in Vacuo. By the Rev. T. R. Robinson, D. D. 283, 
176 
181 
194 
209 
216 
220 
223 
225 
226 
229 
230 
230 
240 
244 
247 
248 
250 
250 
251 
251 
251 
251 
260 
261 
270 
271 
273 
276 
279 
426 
