EXPLANATION OF THE PLATES AND WOOD-CUTS. 



PLATE XV. 



Map and Sections illustrative of Mr. Maclauchlan's memoir on the Forest of Deane. 

 The scale is the same as that of the Ordnance Map : pp. 193 to 206. 



WOOD-CUTS. 



Diagram to explain the contortion in the Coal Measures near Lidbrook Valley : p. 201. 

 Diagram of part of the great fault between Lydney and Denbigh Lodge : p. 205. 



PLATES XVL & XVn. 



Illustrate Mr. Stokes' memoir on a piece of Wood, partly petrified by carbonate of 

 lime ; with some remarks on Fossil Woods : p. 207 to 214. 



In PI. XVI. Fig. 3. and PI. XVII. Fig. 1. the dotted lines indicate the portions pre- 

 sented in the magnified figures, PI. XVI. Fig. 4. and PI. XXII. Fig. 2. 



WOOD-CUT. 

 Partially petrified Wood from the Vale of the Aire, near Ferrybridge, Yorkshire : 

 p.211. 



WOOD-CUT. 



To illustrate Mr. Hunton's remarks on the distribution of Fossil Testacea in the Up- 

 per Lias and Marlstone of Yorkshire : pp. 215, 221. 



PLATE XVIII. 



Fossils of the Faxoe Chalk : noticed in Mr. Lyell's Memoir on Seeland and Moen : 



p. 243 to 257. 

 Fig. I. 2. 3. Cypraea bullaria (Cyprecites bullariaSchlotheim) from a drawing supplied 



by Dr. Beck : p. 250, note. 

 Figs. 4. 5. 6. & 7. Nautilus Danicus, (Schlotheim.) Figs. 4. & 5, From drawings supplied 



by Dr. Beck. Figs. 6. & 7. From a specimen in the Geological Society's Museum : 



p. 250, note. 



WOOD-CUTS. 



Fig. 1. Valve of a Venericardia resembling V. senilis of the Crag : p. 245. 



Fig. 2. Section in the Cliff near the church of Hoierup, Stevensklint : p. 247. 



Fig. 3. Cliff between Hoierup and the lighthouse, Stevensklint : p. 248. 



Fig. 4. Caryophyllia Faxoensis (Beck) : p. 249. 



Fig. 5. Coral allied to Isis, from the limestone of Faxoe : p. 249. 



Fig. 6. Section from Stevensklint to Faxoe : p. 251. 



Fig. 7. Section of a chalk cliff near a rock called Taleren, Mcien : p. 254. 



Fig. 8. View from the sea beach of the ravine at Sommerspiret : p. 254. 



Fig. 9. Side view of part of the northern precipice in the same ravine, exhibiting a 



great mass of sand let into the chalk, and a huge fragment of chalk again included 



in the sand : p. 255. 

 Fig. 10. Section of a promontory between Taleren and Sommerspiret, in which a mass 



of blue clay intersects the chalk : p. 255, 

 Fig. 11. View of the Cliff called Dronningestolen, Island of Moen : p. 25G. 



