PROCEEDINGS OF GEOLOGICAL SOCIETIES. 



555 



3. " On the Geologicnl Maps of Lancashire." By Edward Hull, Esq. 



4. " On the cause of the Explosion at the Hetton Colliery." By Joseph 

 Dickenson, Esq. 



5. " On a Mineral Spring in Germany which is influenced by the pressure of 

 the Air." 



6. "On the Geology of Castleton." By John Taylor, Esq., Jun. 



7. " Notice of the Life of the late Mr. Elias Hall, the Geologist." By E. 

 W. Binney, Esq. 



S. " On the Drift Deposits found about Llandudno." By E. W. Binney, 

 Esq. 



9. " On Sigillaria and its Boots." By E. W. Binney, Esq. 



The communications and discussions on the safety-lamp ; on sudden out- 

 bursts of fire-damp ; on ventilation in mines ; and on other subjects of a 

 kindred nature, have, there is reason to believe, done good by awakening 

 inquiry, and stimulating practical men to the exercise of habits of vigilant and 

 accurate observation. 



No excursions were undertaken in the course of the past year. In some of 

 the previous years there were occasionally pleasant and instructive rambles, 

 by parties of the members, into localities presenting Geological features of an 

 attractive kind ; and the Council thought it worthy of consideration 

 whether a system of periodical excursions should not be arranged and put in 

 practice, as one of the means for keeping up a lively interest in the Society, 

 and for promoting the objects for which it was instituted. 



Another means, not yet adopted, has been suggested as likely to be pro- 

 ductive of good in the Society— the holding of evening meetings at the 

 Museum, for the purpose of conversation, and for hearing short lectures ex- 

 planatory of different groups of fossils in the collection 



The Council urged the desirableness of considering the suggestion about 

 making the Society more of a mining institute than a Geological Society — the 

 improvement of mining being one of the objects of the Society. 



Joseph Dickinson, E.G.S., was elected President. 



The routine business having been gone through- 

 Mr. Edward Lacey exhibited two specimens of lead ore (galena) from a vein 

 Aihich cuts, in nearly a vertical direction, through a coal at Axe Edge, Derby- 

 shire. The coal is sixty yards above the limestone, and, where in contact with 

 the lead, it is not charred nor altered in any way — clearly showing that the lead 

 was not introduced in a heated state. The vein of galena is about three 

 inches in thickness, and is contained in a fracture of the strata, or fault, which 

 passes through the rocks above and below the seam of coal. It has been fol- 

 lowed about fifteen yards above the coal, without presenting any indication of 

 swelling out to a workable thickness ; but at present it has not been examined 

 below the level of the coal on account of the accumulation of water in that 

 direction. 



Mr. Binney stated that he had described a similar vein found in Mr. Gis- 

 borne's colliery, at Horwhich, near Whaley Bridge. The strata there and near 

 Axe Edge were in the same geological position — namely, the Rothdale series 

 of coals. The bed of coal where the lead was found might be only sixty 

 yards in horizontal distance from the limestone, but in vertical distance it 

 would be near two thousand feet. The Whaley Bridge vein is described in 

 his paper in the " Memoirs of the Literary and Philosophic Society of Man- 

 chester." 



