r 



Upper 

 Gallery. 



Wall-case 43 



» 



90 IRONSTONES, 



155. — Pipe of ferruginous grit, found in beds of iron 

 sandstone, sometimes of considerable dimensions. — Ightham, 

 Kent. Presented by Joseph Barling. 



156 and 157. — Rhombic masses of ferruginous grit 

 found in the gritstone or oak quarrystone overlying Coal 

 Measures, on the tops of hills around Barnsley. — Presented 

 by Mr. Wilson. 



158. — Ironstone (peroxide of iron), containing numerous 

 pebbles of quartz. From Carboniferous Limestone. — Cm- 

 derford, Forest of Dean. 



159 and 160. — Brown iron ore {brown hcematite\ from 

 Magnesian Conglomerate. — Mendip Hills, Somerset. 



Nos. 147, 148, 159, 160, 163, 164, and 165 are from the 

 Dolomite or Magnesian Conglomerate of the Mendip Hills, 

 Somerset (Map 19). — Presented by the "Little Down* 

 and " Ebbw Rocks " Mining Company. 



161. — Ironstone (peroxide of iron), containing numerous 

 casts of freshwater shells {Paludina). — From the Wealden, 



of Brixton Bay, Isle of Wight 



162. 



Peroxide of iron, cementing freshwater shells 



( Paludina). — From 

 Cliff, Isle of Wight. 



(Map 



Eocene beds of Hi 



163. — Brown iron ore (hydrous peroxide of iron), from 

 Magnesian Conglomerate. — Mendip Hills, Somerset. 



164. — Red iron ore (peroxide of iron), commonly known 

 by the name of " reddle." — Mendip Hills, Somerset. 



165. — Sparry iron ore (with carbonate of copper) partly 

 converted by decomposition into brown iron ore. — Mendip 

 Hills, Somerset. 



-Reniform nodule of clay ironstone. 

 166, 167, and 168, from the Hastings Sands, of 



1 



Nos. 



Hastings in Sussex, were presented by Dr. Percy, F.R.S. 

 167. — Flattened nodule of clay ironstone, with Cyclas. 



Hastings, Sussex. 



168. — Concretion of clay ironstone. — Hastings, Sussex. 



169. — Flattened nodule of clay ironstone (" New Mine 







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