158 COAL AND COAL-FORMATIONS. 



in the substances called coals , but indirectly every man is 

 less or more indebted to their applications ; and it must be 

 a dull or indifferent mind that cannot be induced to take 

 some interest in products to which his country owes so 

 much of her power and greatness, and himself so many of 

 the comforts and amenities he is daily enjoying. 



