486 PROCEEDINGS OP THE GEOLOGICAL SOCXET"E. [May 30, 



In Serpentine. 



4. Serpentine rock, common and noble (never contains diallage) ; 



Metaxite; Picrolite. 



5. Asbestos ; Atnianthus ; " Mountain-wood." 



6. Calc-spar, in places converted into Miemmite (Dolomite) — 



(CaO.MgO)CO 2 . 



7. Quartz. 



8. Native copper Cu. 



9. Red oxide of copper CVO. 



10. Grey copper Fe 4 Cu 1G Sb 6 S 21 . 



11. Bornite FeS+2Cu 2 S. 



12. Chalcopyrites FeS + CuS. 



13. Cbrysocolla Cu0.2Si0 3 +HO 1 



14. Malachite 2CuO. C0 2 + HO [ only superficially. 



15. Azurite 3Cu0.2C0 2 + HO J 



In " Gabbro rosso ; " apparently metamorphosed minerals. 



16. Caporcianite — 



3(MgO. CaO)2Si0 3 + 3AP0 3 . 2Si0 3 + 9HO. 



17. Savite— 



3(MgO. NaO)2Si0 3 + APO 3 . Si0 3 + 2HO. 



18. Schneiderite — 



3(MgO. CaO)2Si0 3 + 3AP0 3 . 2Si0 3 + 3HO. 



19. Picranalcime — ■ • 



3MgO. 2Si0 3 +3AP0 3 . 2Si0 3 + OHO. 



20. Sloanite— 



3(CaO. MgO)2Si0 3 + 5AP0 3 . Si0 3 + 9HO. 



21. Picrotomsonite — 



2[3(MgO. CaO)Si0 3 ] +5A1 2 3 ? Si0 3 + 9HO. 



22. Portite 



3(CaO. MgO)2Si0 3 + 4(AP0 3 . 2Si0 3 ) + 7HO. 



23. Humboldtite (Datbolite)— 



2(3Ca0.4Si0 3 + 3CaO.B0 3 ) + 4MgO + 2HO. 



2. On the Ossiferous Caves of the Peninsula of Gower, in Glamor- 

 ganshire, South "Wales. By PI. Falconer, M.D., F.R.S., F.G.S. 

 With an Appendix, on a Raised Beach in Hewslade Bat, and 

 the Occurrence of the Boulder-clay on Cefn-t-brtn ; by J. 

 Prestwich, Esq., F.R.S., Treas. G. S. 



[The reading of this paper was commenced.] 



