INDEX TO PROCEEDINGS OF SOCIETIES. 
Page- 
Academy, Royal Irish, ordinary meetings, 42,44, 96, 100,106, 111, 120, 214, 222, 278 
-Election of members, .............. 96, 106, 122, 205, 273 
-Donations to Museum, .. 43,46,110,214 
-Members lost by death,.. 121 
-Election of officers, ..122 
Actinoida, list of Irish species of, ...... ....35 
Address of Lord Talbot de Malahide, President of Dublin Geological Society, . . 72 
-of the President of the Royal Irish Academy, ............ 222 
—r-— of Royal Irish Academy to the Lord Lieutenant,.206 
Ancient Irish deeds, on, ......106 
Andrews, W., notes on the fishes of the western coast of Ireland, and on the 
occurrence of the boar-fish,.. 188 
Arklow Head, on the igneous rocks of, ....17 
Anorthite, analysis of, from Ural Mountains,...174 
Archer, William, on a new genus and species of Desmidiacese, ... 234 
—■— supplementary list of Dublin Desmids,... 257. 
—— on an unicellular alga, .. ...258 
Atmospheric pressure, annual variation of, in Gulf of St. Lawrence,.44 
Bacon, Roger, on the Opus Majus of,.. 100 
Baily, W. H., on a crustacean from the coal-measures, with some remarks on the 
genus Limulus,. 168 
Bate, C. Spence, F. L. S., on a new British Hippolyte,.. 51 
-on the genus Scorpionura,.. 202 
Birmingham, John, on the junction of limestone, sandstone, and granite at Ough- 
terard, .. 55 
—— on the drift of West Galway and eastern parts of Mayo,.57 
Bryum sanguineum, on a singular form of,.129 
Burchall, Edwin, additions to Irish Lepidoptera,.53 
Cambrian rocks, on organic remains in, .88 
Capros aper, on its occurrence in Ireland,...188 
Carte, A., A. M., M. B., on a fossil elephant’s tooth from the Doab Canal, ... 84 
Cayley, G., on the theory of reciprocal surfaces,...Ill 
Cinclus aquaticus, on the sub-aqueous habits of,...91 
Clermont, Lord, on the capture of the mute swan, ..90 
Crozier, Lieutenant R., R. E., &c., catalogue of Lepidoptera collected in Chatham, 125 
Deeds, ancient Irish, ....... . ... 106 
Desmidiacese, on a new genus and species of, . ... 234 
——• supplemental list of Dublin,.. 257 
Diatomaceae collected in Powerscourt, catalogue of, ..123 
-Dublin, catalogue of,...271 
