I30 



ILLUSTRATIONS OF THE 



Hutton has defer ibed the appearances with great 

 accuracy, and drawn from them the mod inte. 



fling concluiions 



At the jundion of the pri, 

 ■y and fecondary ftrata, the fads which he 



has noted had b 



bferved by others ; but 



I think had lo fully underflood the language 



which they fpeak, or had 



learly perceived 



} 



th 

 th 



fequences that neceifarily follow from 

 He is the firfl who diftindlly pointed 



out the charadlers wh 



ftinstiifh whinft 



fr 



fc) 



and 



h 



plained th 



He alfo 



that fubfifts between thefe fubftances. 

 dilcovered the induration of the ftrata, in con- 

 tact with veins of whin, and the charring of the 

 coal in their vicinity. His theory alfo enabled 



affinity of whinftone and 



him 



determ 



the 



granite to one another, and their relation to the 

 other great bodies of the mineral kingdom. 



To the obfervations of the fame excellent 

 geologift, we are indebted for the knowledge of 

 the general and important fad, that all the hard 

 fubilances of the mineral kingdom, when ele- 

 vated into the atmofphere, have a tendency to 

 decay, and are fubjcd to a difintegration and 

 wade, to which no limit can be fet but that of 



their entire deftrudion ; that 



no provilion is 



made on the lurface for repairing this wafle, and 

 that there, no new foffii is produced ; that the 

 formation of all the varied fcenery which the 



furface 



