Q30 DOMAIN XI. DECOMPOSED. 



minated over the surface as thickly as in the 

 other instance, and can be explained only 

 on the same supposition. 



" Again, in the interior of England, be- 

 ginning from about Worcester and Birming- 

 ham, and proceeding north-east through 

 Warwickshire, Leicestershire, Nottingham- 

 shire, as far as the south of Yorkshire, a 

 particular species of highly indurated gra- 

 vel, formed of granulated quartz, is found 

 every where in great abundance. This 

 same gravel extends to the west and north- 

 west as far as Ashburn, in Derbyshire; 

 and perhaps still farther to the north. The 

 quantity of it about Birmingham is very 

 remarkable, as well as in many other places;' 

 and the phenomenon is the more surprising, 

 that no rock of the same sort is seen in its 

 native place. It is such gravel as might be 

 expected in a mountainous country; in 

 Scotland, for instance, or in Swisserland ; 

 but not at all in the fertile and secondary 

 plains of England. 



" This enigma is explained, however, 



