Xll CONTENTS. 



PAGE 



The idea of repeated revolutions not unscriptural . . . 170 



The preadamite cosmogony 171 



Dr. Young's opinions 175 



The "fire-mist theory" and the "chemical theory" not neces- 

 sary to account for the internal heat of the earth . . 175 



The internal heat of the earth a necessary consequence of the 

 manner in which the sun acts upon the earth . . . 176 



The original condition of the earth may be that which is de- 

 scribed in Genesis 177 



The earth need not be of extreme antiquity .... 177 



The coal-strata, as a rule, may have been formed within a com- 

 paratively limited period, because they are formed from 

 drifts^ and not from forests growing on the spot . . . 178 



The limestone-strata, as a rule, may have been formed within a 

 comparatively limited period, because they are formed from 

 drifts^ and not by animals living on the spot . . . 181 



The other stratified rocks, as a rule, are certainly the product 

 ot drifts 183 



These strata may therefore have been formed in one epoch, for 

 if the coal-strata and limestone-strata are the product of 

 drifts, the one may have drifted upon the other in the same 

 basin, and there is no necessity that each stratum should 

 represent what was once a living and growing surface of the 

 earth . . ' . . 183 



