LONDONGeological Society, June [20.-Prof. P. Martin Duncan, F.RJS., president, in the chair.-Messrs. George Alexander Gibson, Henry P. Gurney, John Higson, and Francis Stevenson, were elected fellows of the Society.-The following papers were read:-On a hitherto unnoticed circumstance affecting the piling up of volcanic cones, by R. Mallet, F.R.S.-The steppes of Southern Russia, by Thomas Belt, F.G.S.-The glacial period, by J. F. Campbell, F.G.S.-The action of coast-ice on an oscillating area, by Prof. John Milne, F.G.S., of the Imperial College of Engineering, Tokio, Japan.-On points of similarity between zeolitic and siliceous incrustations of recent formation by thermal springs and those observed in amygdaloid and other altered volcanic rocks, by Prof. A. Daubree, F.M.G.S.-On the cretaceous Dentaliadse, by J. S. Gardner, F.G.S.-On a number of new sections around the estuary of the Dee which exhibit phenomena having an important bearing on the origin of boulder-clay and the sequence of glacial event?, by D. Mackintosh, F.G.S.-Discovery of silurian beds in Teesdale, by W. Gunn, F.G.S., and C. T. Clough, F.G.S., of H.M. Geological Survey.-On the superficial geology of British Columbia, by George Mercer Dawson, F.G.S., Assoc. R.S.M., of the Geological Survey of Canada.-The exploration of the ossiferous deposit at Windy Knoll, Castleton, Derbyshire, by Rooke Pennington, F.G.S., and Prof. W. Boyd Dawkins, by Prof. W. Boyd Dawkins, F.R.S.-Description of the fossil organic remains from Bendigo, by M. Carl August Zacharia?, communicated by the president.-Notes on some recent discoveries of copper ore in Nova Scotia, by Edwin Gilpin, F.G.S. -Glacial drift in the North-eastern Carpathians, by R. L. Jack, F.G.S., and John Home, F.G.S., of the Geological Survey of Scotland.-On terminal curvature in the south-western counties, by W. A. E. Ussher, F.G.S., of H.M. Geological Survey.-On the chronological classification of the granitic rocks of Ireland, by G. H. Kinahan, M.R.I. A., communicated by Prof. Ramsay, F.R.S.-The Cambrian rocks of South-east Ireland, by G. H. Kinahan, M.R.I. A., communicated by Prof. Ramsay, F.R.S.