EXPLANATION OF THE PLATES. 



Plate . Page 



yj* I North-American Pal.eozoic Ostracoda. 



III. North- American and Kussian PALiEozoic Ostracoda. 



IV. North-American, Welsh, and Irish Ostracoda. 



To illustrate Prof. T. R. Jones's paper on some Palaeozoic 

 Ostracoda .% 1 



y r Pliosaurus ferox, to illustrate Mr. E.. Lydekker's paper on 

 \ some Dinosaurs and Sauropterjgians 36 



Ehaxella perforata, to illustrate Dr. G. J. Hinde's paper 

 on a Siliceous Sponge from the C ale-grit of Yorkshire ... 54 



VI. 



(Diagram-Sections of the Preglacial Drifts of the 

 Thames Basin, to illustrate Prof. Prestwich's paper on the 

 Westleton Beds ; Part II 120 



(Map of the Preglacial Drift-Beds of the Basin of the 

 Thames, to illustrate Prof. Prestwich's paper, Part III., 

 on the Westleton Shingle and the Southern Drift 155 



jY f Pleuroccelus valdensis, to illustrate Mr. R. Lydekkers paper 

 * \ on some Sauropodous Dinosaurs 182 



( Sketch-Map of St. David's District, N. W., to illustrate 

 X. \ Mr. 0. LI. Morgan's paper on the Pebidian Volcanic Series 

 I of St. David's „ 241 



Yj f Girvanella, to illustrate Mr. E. Wethered's paper on 

 •\ Oolitic Structure 270 



YjT TNew Labyrinthodonts, to illustrate Mr. R. Lydekker's 

 ■ I paper on two new species of Labyrinthodonts 289 



{Igneous Rocks of Mont Genevre, to illustrate Messrs. Cole 

 and Gregory's paper on the Variolitic Rocks of Mont 

 Genevre 295 



XIV. Scottish Andesites and Propylites. 

 XV. Andesites of Ben Hiant. 



To illustrate Prof. J. W. Judd's paper on the Propylites 

 of the Western Isles of Scotland 341 



