XXfX 



the Strata and Fossils between the Borrowdale series of the Coniston Flags 

 of the North of England. 



Rev. E. Sewell, M. A., F. G. L.: Notes on the Drifts and Boulders 

 of the Upper Part of the Valley of the Wharfe, Yorkshire. 



C.E.DeRance,F.G S.: Second Reporl of the Committee on Un- 

 derground Waters of the New Red and Permian Formations of England. 



W. S. Mitchell, LL. B.: On the Bagshot Leaf-beda. 



Prof. James Thomson, F. R. S. E.: On Ridgy Structure in Goal, 

 with suggestions towai^ds accoimting for its orìgin. 



Prof. James Thomson, F. R. S, E.: Further Illustration of the 

 Jointed Prismatic Structure in Basalts and other Igneous Rocks. 



Rev. H. W. Crosskey, M. A.: Report on Distribution of Erratic 

 Boulders. 



Prof. E. Hull, M. A., F. R. S.: On the Upper Limit of the essen- 

 tially Marine Beds of the Carboniferous System in the British Isles, and the 

 necessity for the Establishment of a Middle Carboniferous Group. 



G. E. De Rance, F. G. S.: Note on Sectioas exhibiting Vai'iation 

 of Thickness in the Middle Coal-Measures of West Lancashh'e. 



G.A. Lebour, F.G. S.: On the Changes affiecting the Southern 

 Extension of the Lowest Carboniferous Rocks. 



Dott. F. Roemer: Or. the Mountain Limestone on the West Coast of 

 Sumatra. 



Dott. Von Lasaulx: On some New Minerals and on Doubly- refrac- 

 ting Garnets. 



R. Russai, C. E., F. G. S., and T. V. Holmes, F. G. S.: On the 

 Raised Beaches of the Cumberland Coast between Whitehaven and Boness. 



James Croll, LL. D., F, R.S.:On the Tidal Retardation Argument 

 for the Age of the Earth. 



John Young, F. G.S.:On Siliceous Sponges from Carboniferous 

 Limestone near Glasgow. 



Dott. Robert Slimon: On the Upper Silurian Rocks of Lesmahagow. 



James Bryce, LL. D.:On the Granite of Strath Errick, Lough Ness. 



J. E. Taylor, F. G. S.: On the Age, Fauna, and Mode of Occurrence 

 of the Phosphorite Deposits of the South of France. 



Prof. Hull, M. A., F. R. S.: Oq a deep boring for Goal at Searle, 

 Lincolnshire. 



R. L. Jack, F. G. S.: On Tertiary Basalt-Rock Dykes in Scotland. 



W. A . Traili, M . R . I . A . On certain pre-Carboniferous and Meta- 

 morphosed Trap-Dykes, and Associated Rocks. in North Mayo. 



Prof. A. Herschel, T. R. A. S. and G. A. Lebour, T. G. S. 

 Report on the Thermal Conductivity of Roks. 



