List of the Contributors. vii 



O'KeILLY, J. P., C.E. • PAGE 



On the Calcite Crystals from the Iron Measures of the 



County Antrim (Plate II.), . . . . . 43 



The Amygdaloidal Limestone of Downhill, County Derry, 155 



Notes on the Phosphorite Nodules of Podolia, . . 215 



On De Eossi's Seismical and Endodynamical Map of 

 Italy, . . . . . . . . .454 



On Beryl with Schorl in GlencuUen Valley, . . . 505 



Note on the Occurrence of Granite Porphyry in the Three- 

 rock Mountain, County Dublin, . . . .507 



PiM, Geeenwood, M.A., F.L.S. 



A Contribution to the Natural History of the Hairs of 



the Andrcecium (Plates XIX. and XX.), '. . . 419 



Note on an Abnormal Development of Picea Pinsappo, . 508 



Eeynolds, J. Emerson, M.D. F.E.S. 



Note on Seleno-Carbamide, ...... 437 



EiGBY, John, M.A. 



Velocity and Energy of Small Shot, . . . .25 



SoLLAs, W. J., M.A., D.Sc, F.G.S. 



On the Origin of Freshwater Faunas (Abstract), . . 238 



Physical Characters of Calcareous and Siliceous Sponge- 



spicules (Plate XV.) 374 



On an Hexactinellid Sponge from the Gault, and a 



Lithistid from the Lias of England (Plate XXL), . 443 



Stoney, George Gerald. 



On Gearing for Bicycles and Tricycles, .... 20 



