574 DOMAIN VI. CARBONACEOUS. 



rather mountain masses, by the Germans called 

 Bergarts i for as rocks may be formed of shells 

 and other animal substances, so they may be 

 constituted of the venerable remains of primeval 

 vegetation. This kind is the Bovey coal of En- 

 gland ; and in the Prussian amber mines is found 

 with adhering amber. It is the Surturbrand 

 of Iceland where it abounds ; and is diffused 

 through many parts of Germany, France, 

 Russia, Siberia, and other grand regions of the 

 world. 



The second subspecies, earth coal, is sometimes 

 found with the former, being merely bituminous 

 wood more decomposed. The third, or alum 

 earth is certainly a most capricious alteration, 

 as he had formerly and properly arranged it 

 among the argils, and it ought in lithology to 

 stand at the very head of that class. It may 

 have been used as a fuel, as orsten is in Ireland; 

 and, perhaps, Mr. Werner may, in his annual 

 almanack of classification, arrange that lime- 

 stone among the coals. The fourth subspecies, 

 common brown coal, is, by Mr. Jameson's own 

 account, the same with the first or bituminous 

 wood, being found at Bovey, and in Prussia, 

 with amber; so that it can hardly be called a 

 variety, certainly not a diversity. The t y?/?A, or 



