EXPLANATION OE THE PLATES. 



Plate Page 



j f Sections of Permian and Upper Carboniferous Strata, to 

 ' \ illustrate Mr. D. C. Davies's paper on that subject 10 



{Map of part of the Irish coast, including Wexford Bay, to 

 illustrate Mr. G. H. Kinahan's paper on the Chesil Beach 

 and Cahore Shingle Beach 29 



III. "1 Australian Cainozoic Echinoderms, to illustrate Prof. P. 

 IY. J Martin Duncan's paper on those fossils 42 



V. "1 Remains of Tortoises from Malta and Gibraltar, to illustrate 

 VI. J Prof. A. Leith Adams's paper on those fossils 177 



VII 1 

 yy-j-j-' I British Cretaceous Patellid^e &c, to illustrate Mr. J. S. 



j-jT-' j Gardner's paper on those fossils 182 



-jt TMap and Sections of the Pre-Cambrian Rocks near St. 

 ' \ David's, to illustrate Mr. H. Hicks's paper on those rocks 229 



-jr-j J Pharetrospongia Strahani, to illustrate Mr. W. J. Sollas's 



L paper on that sponge , 242 



[ Comparative Sections of the Corallian Rocks of England, 

 XII. \ to illustrate Messrs. Blake and Hudleston's paper on those 



[ rocks 260 



XIII. 



XIV. 



XV. 



XVI. 



Corallian Fossils, to illustrate Messrs. Blake and Hudle- 

 ston's descriptions 391 



■rryyy f Araucarites Hudlestoni, to illustrate Mr. W. Carruthere's 



'[ description of that fossil 402 



(Sections of the Carboniferous Limestone of Northumber- 

 land, to illustrate Messrs. Topley and Lebour's paper on the 

 intrusive character of the Whin Sill 406 



-J7-1--J7- / Rock-Sections, to illustrate Mr. J. A. Phillips's paper on 



\ altered Eruptive Rocks of North Wales 423 



■jr^ f Pitchstones and Perlites from Shropshire, to illustrate Mr. 



I S. Allport's paper on those rocks 449 



