10 USES OF 



External numerous observations seem to prove, that the surface 



and internal ^ , , . 



heat dimin. of the earth IS of a lower temperature than formerly, it may 

 ishes. accordance with sound logic to suppose, that the cool- 



ing of a heated cannon ball will exemplify the gradual cooling 

 of the earth. Therefore, as the cannon ball cools rapidly at 

 its surface, without any material diminution of temperature at 

 the depth of an inch for a long time ; we may infer that after 

 penetrating the earth to the depth of a few miles, we should 

 arrive nearly to its maximum of heat. 



theo 



Ancient Specific gravity and internal heat being all we know of the 

 structure of the earth, excepting what we learn from inspecting 

 its surface, the absurdity of ancient theories is manifest. But 

 Earth pen- t^pg jj^g ^q^^ elevated ridffes being about five miles 



etrable tive _ ^ .... 



miles. higher than the deepest natural and artificial cavities, much 

 has already been ascertained respecting the history and struc- 

 ture of the earth. 



Utility of Geological facts lead us to the history of created beings? 



the study. ^ . . , , . , 



1st, as the long anterior to written records, teuch records may be er- 



his^torv. roneous, and we have no means for correcting them. But 

 geological records are perpetual, unvarying, and cannot be vi- 

 tiated by interpolations or counterfeits. For example, the writ- 

 ten history of the deluge might be varied more or less by er- 

 roneous copies or incorrect translations. But the geological 

 records of divine wrath poured out upon the rebellious inhabi- 

 tants of the earth, at that awful period, can never be effaced nor 

 changed. These latter records add, to the Mosaic account, 

 that even the anted ilu vial beasts of the forests and fens par- 

 took of the ferocious nature and giant strength of antedilu- 

 vial man. 



Order of The order of creation too is stamped upon the ever during 

 rocks. There and there only we learn which of the grasses 

 and of the herbs yielding seed, and of the fruit trees yielding 

 fruit after its kind, was created first. For the acotyledonous 

 tribe of ferns first appear in the oldest rocks containing organ- 

 ic relics, these are followed by the larg^est mono-cotyledonou« 



creation. 



