EXPLANATION OF THE PLATES AND WOOD-CUTS. 

 PLATES XXXV. to XLI. 



Illustrate Mr. Prestwich's Memoir on Coalbrook Dale: p. 413. 



Plate XXXV. 



Map on the scale of one inch to a mile, the topography being copied from the Ordnance 

 Map. 



Plate XXXVI. 



Sections, horizontal scale 2 inches to a mile. 



Fig. 1. Longitudinal section from the Wharf, near Lilleshall Hill, at the northern ex- 

 tremity of the coal-field, to Shirlot Hill. 



Fig. 2. Transverse section through Lilleshall Hill. 



Mg. 3. West and east section through Donnington Field. 



Fig. 4. Transverse section from a little south of Hadley to Woodhouse Hill. 



Fig. 5. West and east section from Buckatree Hall to the Great East Fault. 



Fig. 6. West and east section from Wrekin Farm to Randley. 



Fig. 7. West and east section from a little west of Primrose Hill to Brans Farm. 



Fig. 8. West and east section from the Devil's Dingle to near Homer Farm. 



Fig. 9. Transverse section from a little south of Coalbrook Dale to Sutton Hill. 



Fig. 10. Transverse section from a little west of Benthall Edge to a little south of 

 Sutton Maddock. 



Fig. 1 1 . West and east section from Wenlock Edge to Old Park. 



Fig. 12. West and east section from Westwood Common to Apley Park. 



Fig. 13. Diagonal section from N.N.W. to S.S.E., or from Cluddley to Dunvall. 



Fig. 14. North and south section from near Hadley to a little south of Willey. 



Fig. 15. N.N.W. and S.S.E. section through the Wrekin to the Severn. 



Fig. 16. West and east section from Henley Farm to Pendlestone Rock. 



Plate XXXVII. 



Diagram illustrative of the principal coal-shafts in their range from north to .south, of 

 the changes in the mineral composition, thickness and number of the beds; also 

 of the nature and distribution of the organic remains. The vertical scale is to the 

 horizontal in the proportion of about 26 to 1, in order to represent every bed. 



Plate XXXVIII. 



Fossil Plants from the coal measures described by Mr. John Morris and engraved by 

 Mr. James de Carle Sowerby. 

 Fig. 1. Halonia disticha, n. s. 



Length of specimen 4 feet ; width from 4 to 6 inches. 

 Stems and leaves unknown. 



